512199293761 has 3 divisors (see below), whose sum is σ = 512200009443. Its totient is φ = 512198578080.

The previous prime is 512199293759. The next prime is 512199293789. The reversal of 512199293761 is 167392991215.

The square root of 512199293761 is 715681.

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

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.

It can be written as a sum of positive squares in only one way, i.e., 286954133761 + 225245160000 = 535681^2 + 474600^2 .

It is not a de Polignac number, because 512199293761 - 2¹ = 512199293759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512199293861) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 357841 + ... + 1073521.

It is an arithmetic number, because the mean of its divisors is an integer number (170733336481).

Almost surely, 2^512199293761 is an apocalyptic number.

512199293761 is the 715681-st square number.

512199293761 is the 357841-st centered octagonal number.

It is an amenable number.

512199293761 is a deficient number, since it is larger than the sum of its proper divisors (715682).

512199293761 is an frugal number, since it uses more digits than its factorization.

512199293761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431362 (or 715681 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 55.

The spelling of 512199293761 in words is "five hundred twelve billion, one hundred ninety-nine million, two hundred ninety-three thousand, seven hundred sixty-one".