83177839940 has 48 divisors (see below), whose sum is σ = 188132860272. Its totient is φ = 30708066816.

The previous prime is 83177839939. The next prime is 83177839951. The reversal of 83177839940 is 4993877138.

It can be written as a sum of positive squares in 8 ways, for example, as 146264836 + 83031575104 = 12094^2 + 288152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83177839940.

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, 3022322 + ... + 3049718.

It is an arithmetic number, because the mean of its divisors is an integer number (3919434589).

Almost surely, 2^83177839940 is an apocalyptic number.

It is an amenable number.

83177839940 is an abundant number, since it is smaller than the sum of its proper divisors (104955020332).

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

83177839940 is a wasteful number, since it uses less digits than its factorization.

83177839940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39096 (or 39094 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 83177839940 in words is "eighty-three billion, one hundred seventy-seven million, eight hundred thirty-nine thousand, nine hundred forty".