87740437475 has 24 divisors (see below), whose sum is σ = 111769507008. Its totient is φ = 68276390400.

The previous prime is 87740437469. The next prime is 87740437487. The reversal of 87740437475 is 57473404778.

It is not a de Polignac number, because 87740437475 - 2⁸ = 87740437219 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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 87740437475.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4000790 + ... + 4022660.

It is an arithmetic number, because the mean of its divisors is an integer number (4657062792).

Almost surely, 2^87740437475 is an apocalyptic number.

87740437475 is a deficient number, since it is larger than the sum of its proper divisors (24029069533).

87740437475 is a wasteful number, since it uses less digits than its factorization.

87740437475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26255 (or 26250 counting only the distinct ones).

The product of its (nonzero) digits is 18439680, while the sum is 56.

The spelling of 87740437475 in words is "eighty-seven billion, seven hundred forty million, four hundred thirty-seven thousand, four hundred seventy-five".