86578428886636 has 48 divisors (see below), whose sum is σ = 155340055584000. Its totient is φ = 42205957177280.

The previous prime is 86578428886519. The next prime is 86578428886669. The reversal of 86578428886636 is 63668882487568.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123245115 + ... + 123945613.

It is an arithmetic number, because the mean of its divisors is an integer number (3236251158000).

Almost surely, 2^{86578428886636} is an apocalyptic number.

It is an amenable number.

86578428886636 is a deficient number, since it is larger than the sum of its proper divisors (68761626697364).

86578428886636 is a wasteful number, since it uses less digits than its factorization.

86578428886636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704214 (or 704212 counting only the distinct ones).

The product of its digits is 35672555520, while the sum is 85.

The spelling of 86578428886636 in words is "eighty-six trillion, five hundred seventy-eight billion, four hundred twenty-eight million, eight hundred eighty-six thousand, six hundred thirty-six".