92537691521 has 4 divisors (see below), whose sum is σ = 100950208944. Its totient is φ = 84125174100.

The previous prime is 92537691503. The next prime is 92537691551. The reversal of 92537691521 is 12519673529.

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 de Polignac number, because none of the positive numbers 2^k-92537691521 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 92537691521.

It is not an unprimeable number, because it can be changed into a prime (92537691551) 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, 4206258695 + ... + 4206258716.

It is an arithmetic number, because the mean of its divisors is an integer number (25237552236).

Almost surely, 2^92537691521 is an apocalyptic number.

It is an amenable number.

92537691521 is a deficient number, since it is larger than the sum of its proper divisors (8412517423).

92537691521 is a wasteful number, since it uses less digits than its factorization.

92537691521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412517422.

The product of its digits is 1020600, while the sum is 50.

The spelling of 92537691521 in words is "ninety-two billion, five hundred thirty-seven million, six hundred ninety-one thousand, five hundred twenty-one".