86218572888 has 72 divisors (see below), whose sum is σ = 271632504780. Its totient is φ = 24633876960.

The previous prime is 86218572877. The next prime is 86218572907. The reversal of 86218572888 is 88827581268.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12215658 + ... + 12222713.

Almost surely, 2^86218572888 is an apocalyptic number.

It is an amenable number.

86218572888 is an abundant number, since it is smaller than the sum of its proper divisors (185413931892).

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

86218572888 is a wasteful number, since it uses less digits than its factorization.

86218572888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24438397 (or 24438383 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 63.

The spelling of 86218572888 in words is "eighty-six billion, two hundred eighteen million, five hundred seventy-two thousand, eight hundred eighty-eight".