92110781557 has 4 divisors (see below), whose sum is σ = 94252892800. Its totient is φ = 89968670316.

The previous prime is 92110781537. The next prime is 92110781579. The reversal of 92110781557 is 75518701129.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-92110781557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92110781537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071055557 + ... + 1071055642.

It is an arithmetic number, because the mean of its divisors is an integer number (23563223200).

Almost surely, 2^92110781557 is an apocalyptic number.

It is an amenable number.

92110781557 is a deficient number, since it is larger than the sum of its proper divisors (2142111243).

92110781557 is a wasteful number, since it uses less digits than its factorization.

92110781557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142111242.

The product of its (nonzero) digits is 176400, while the sum is 46.

The spelling of 92110781557 in words is "ninety-two billion, one hundred ten million, seven hundred eighty-one thousand, five hundred fifty-seven".