85897502418 has 64 divisors (see below), whose sum is σ = 218731080960. Its totient is φ = 21873100032.

The previous prime is 85897502387. The next prime is 85897502423. The reversal of 85897502418 is 81420579858.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2696605 + ... + 2728272.

It is an arithmetic number, because the mean of its divisors is an integer number (3417673140).

Almost surely, 2^85897502418 is an apocalyptic number.

85897502418 is an abundant number, since it is smaller than the sum of its proper divisors (132833578542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85897502418 is a wasteful number, since it uses less digits than its factorization.

85897502418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424931.

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 85897502418 in words is "eighty-five billion, eight hundred ninety-seven million, five hundred two thousand, four hundred eighteen".