92987187497 has 4 divisors (see below), whose sum is σ = 94260984660. Its totient is φ = 91713390336.

The previous prime is 92987187479. The next prime is 92987187499. The reversal of 92987187497 is 79478178929.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79478178929 = 41 ⋅1938492169.

It can be written as a sum of positive squares in 2 ways, for example, as 66631613161 + 26355574336 = 258131^2 + 162344^2 .

It is a cyclic number.

It is not a de Polignac number, because 92987187497 - 2¹⁴ = 92987171113 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 92987187497.

It is not an unprimeable number, because it can be changed into a prime (92987187499) 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, 636898472 + ... + 636898617.

It is an arithmetic number, because the mean of its divisors is an integer number (23565246165).

Almost surely, 2^92987187497 is an apocalyptic number.

It is an amenable number.

92987187497 is a deficient number, since it is larger than the sum of its proper divisors (1273797163).

92987187497 is a wasteful number, since it uses less digits than its factorization.

92987187497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273797162.

The product of its digits is 128024064, while the sum is 71.

The spelling of 92987187497 in words is "ninety-two billion, nine hundred eighty-seven million, one hundred eighty-seven thousand, four hundred ninety-seven".