83864684836 has 27 divisors (see below), whose sum is σ = 152028957171. Its totient is φ = 40478290944.

The previous prime is 83864684777. The next prime is 83864684899. The reversal of 83864684836 is 63848646838.

The square root of 83864684836 is 289594.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1413008100 + 82451676736 = 37590^2 + 287144^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16793956 + ... + 16798948.

Almost surely, 2^83864684836 is an apocalyptic number.

83864684836 is the 289594-th square number.

It is an amenable number.

83864684836 is a deficient number, since it is larger than the sum of its proper divisors (68164272335).

83864684836 is an frugal number, since it uses more digits than its factorization.

83864684836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048 (or 5024 counting only the distinct ones).

The product of its digits is 127401984, while the sum is 64.

Multiplying 83864684836 by its sum of digits (64), we get a square (5367339829504 = 2316752²).

The spelling of 83864684836 in words is "eighty-three billion, eight hundred sixty-four million, six hundred eighty-four thousand, eight hundred thirty-six".