86855544432 has 70 divisors (see below), whose sum is σ = 252308539712. Its totient is φ = 28951844256.

The previous prime is 86855544427. The next prime is 86855544443. The reversal of 86855544432 is 23444555868.

86855544432 is a `hidden beast` number, since 8 + 6 + 8 + 55 + 544 + 43 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3711568 + ... + 3734895.

Almost surely, 2^86855544432 is an apocalyptic number.

It is an amenable number.

86855544432 is an abundant number, since it is smaller than the sum of its proper divisors (165452995280).

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

86855544432 is an equidigital number, since it uses as much as digits as its factorization.

86855544432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446489 (or 7446468 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 54.

The spelling of 86855544432 in words is "eighty-six billion, eight hundred fifty-five million, five hundred forty-four thousand, four hundred thirty-two".