86728402854 has 24 divisors (see below), whose sum is σ = 187931040960. Its totient is φ = 28906467408.

The previous prime is 86728402781. The next prime is 86728402883. The reversal of 86728402854 is 45820482768.

86728402854 is a `hidden beast` number, since 86 + 7 + 284 + 0 + 285 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 86728402854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68182 + ... + 422025.

It is an arithmetic number, because the mean of its divisors is an integer number (7830460040).

Almost surely, 2^86728402854 is an apocalyptic number.

86728402854 is an abundant number, since it is smaller than the sum of its proper divisors (101202638106).

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

86728402854 is a wasteful number, since it uses less digits than its factorization.

86728402854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500044 (or 500041 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 86728402854 in words is "eighty-six billion, seven hundred twenty-eight million, four hundred two thousand, eight hundred fifty-four".