86718505874 has 384 divisors, whose sum is σ = 193879526400. Its totient is φ = 28531077120.

The previous prime is 86718505873. The next prime is 86718505879. The reversal of 86718505874 is 47850581768.

It is a super-2 number, since 2×86718505874² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86718505873) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1097702567 + ... + 1097702645.

It is an arithmetic number, because the mean of its divisors is an integer number (504894600).

Almost surely, 2^86718505874 is an apocalyptic number.

86718505874 is an abundant number, since it is smaller than the sum of its proper divisors (107161020526).

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

86718505874 is a wasteful number, since it uses less digits than its factorization.

86718505874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 59.

The spelling of 86718505874 in words is "eighty-six billion, seven hundred eighteen million, five hundred five thousand, eight hundred seventy-four".