86397845877 has 24 divisors (see below), whose sum is σ = 142633335936. Its totient is φ = 49367317536.

The previous prime is 86397845867. The next prime is 86397845903. The reversal of 86397845877 is 77854879368.

86397845877 is a `hidden beast` number, since 8 + 6 + 39 + 7 + 8 + 4 + 587 + 7 = 666.

It is not a de Polignac number, because 86397845877 - 2⁴ = 86397845861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86397845837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1539688 + ... + 1594814.

It is an arithmetic number, because the mean of its divisors is an integer number (5943055664).

Almost surely, 2^86397845877 is an apocalyptic number.

It is an amenable number.

86397845877 is a deficient number, since it is larger than the sum of its proper divisors (56235490059).

86397845877 is a wasteful number, since it uses less digits than its factorization.

86397845877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80017 (or 80014 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 72.

The spelling of 86397845877 in words is "eighty-six billion, three hundred ninety-seven million, eight hundred forty-five thousand, eight hundred seventy-seven".