92891457961 has 3 divisors (see below), whose sum is σ = 92891762743. Its totient is φ = 92891153180.

The previous prime is 92891457959. The next prime is 92891457979. The reversal of 92891457961 is 16975419829.

The square root of 92891457961 is 304781.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16975419829 = 10289 ⋅1649861.

It can be written as a sum of positive squares in only one way, i.e., 78725697561 + 14165760400 = 280581^2 + 119020^2 .

It is not a de Polignac number, because 92891457961 - 2¹ = 92891457959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 92891457961.

It is not an unprimeable number, because it can be changed into a prime (92891457931) 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, 152391 + ... + 457171.

Almost surely, 2^92891457961 is an apocalyptic number.

92891457961 is the 304781-st square number.

92891457961 is the 152391-st centered octagonal number.

It is an amenable number.

92891457961 is a deficient number, since it is larger than the sum of its proper divisors (304782).

92891457961 is an frugal number, since it uses more digits than its factorization.

92891457961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609562 (or 304781 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 61.

The spelling of 92891457961 in words is "ninety-two billion, eight hundred ninety-one million, four hundred fifty-seven thousand, nine hundred sixty-one".