83633974856 has 32 divisors (see below), whose sum is σ = 157545147000. Its totient is φ = 41622045696.

The previous prime is 83633974819. The next prime is 83633974861. The reversal of 83633974856 is 65847933638.

It can be written as a sum of positive squares in 4 ways, for example, as 83559152356 + 74822500 = 289066^2 + 8650^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11847680 + ... + 11854736.

Almost surely, 2^83633974856 is an apocalyptic number.

It is an amenable number.

83633974856 is a deficient number, since it is larger than the sum of its proper divisors (73911172144).

83633974856 is a wasteful number, since it uses less digits than its factorization.

83633974856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761 (or 13757 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 62.

The spelling of 83633974856 in words is "eighty-three billion, six hundred thirty-three million, nine hundred seventy-four thousand, eight hundred fifty-six".