192792124561 has 3 divisors (see below), whose sum is σ = 192792563643. Its totient is φ = 192791685480.

The previous prime is 192792124529. The next prime is 192792124571. The reversal of 192792124561 is 165421297291.

The square root of 192792124561 is 439081.

It is a perfect power (a square), and thus also a powerful number.

192792124561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 165421297291 = 23 ⋅7192230317.

It can be written as a sum of positive squares in only one way, i.e., 186726830161 + 6065294400 = 432119^2 + 77880^2 .

It is not a de Polignac number, because 192792124561 - 2⁵ = 192792124529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192792124571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 219541 + ... + 658621.

It is an arithmetic number, because the mean of its divisors is an integer number (64264187881).

Almost surely, 2^192792124561 is an apocalyptic number.

192792124561 is the 439081-st square number.

192792124561 is the 219541-st centered octagonal number.

It is an amenable number.

192792124561 is a deficient number, since it is larger than the sum of its proper divisors (439082).

192792124561 is an frugal number, since it uses more digits than its factorization.

192792124561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878162 (or 439081 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

Multiplying 192792124561 by its sum of digits (49), we get a square (9446814103489 = 3073567²).

The spelling of 192792124561 in words is "one hundred ninety-two billion, seven hundred ninety-two million, one hundred twenty-four thousand, five hundred sixty-one".