86397777936 has 120 divisors (see below), whose sum is σ = 243068656896. Its totient is φ = 28647843840.

The previous prime is 86397777863. The next prime is 86397777941. The reversal of 86397777936 is 63977779368.

86397777936 is a `hidden beast` number, since 86 + 397 + 7 + 77 + 93 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23533381 + ... + 23537051.

Almost surely, 2^86397777936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86397777936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121534328448).

86397777936 is an abundant number, since it is smaller than the sum of its proper divisors (156670878960).

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

86397777936 is a wasteful number, since it uses less digits than its factorization.

86397777936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501 (or 4492 counting only the distinct ones).

The product of its digits is 504094752, while the sum is 72.

The spelling of 86397777936 in words is "eighty-six billion, three hundred ninety-seven million, seven hundred seventy-seven thousand, nine hundred thirty-six".