83539538836 has 12 divisors (see below), whose sum is σ = 157439900212. Its totient is φ = 38556710208.

The previous prime is 83539538821. The next prime is 83539538861. The reversal of 83539538836 is 63883593538.

It can be written as a sum of positive squares in 2 ways, for example, as 24177140100 + 59362398736 = 155490^2 + 243644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803264745 + ... + 803264848.

Almost surely, 2^83539538836 is an apocalyptic number.

It is an amenable number.

83539538836 is a deficient number, since it is larger than the sum of its proper divisors (73900361376).

83539538836 is a wasteful number, since it uses less digits than its factorization.

83539538836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606529610 (or 1606529608 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 61.

The spelling of 83539538836 in words is "eighty-three billion, five hundred thirty-nine million, five hundred thirty-eight thousand, eight hundred thirty-six".