83977432886 has 16 divisors (see below), whose sum is σ = 126951219648. Its totient is φ = 41660478600.

The previous prime is 83977432867. The next prime is 83977432897. The reversal of 83977432886 is 68823477938.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548221 + ... + 1601543.

It is an arithmetic number, because the mean of its divisors is an integer number (7934451228).

Almost surely, 2^83977432886 is an apocalyptic number.

83977432886 is a deficient number, since it is larger than the sum of its proper divisors (42973786762).

83977432886 is a wasteful number, since it uses less digits than its factorization.

83977432886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59467.

The product of its digits is 97542144, while the sum is 65.

The spelling of 83977432886 in words is "eighty-three billion, nine hundred seventy-seven million, four hundred thirty-two thousand, eight hundred eighty-six".