80631009936 has 45 divisors (see below), whose sum is σ = 225664376899. Its totient is φ = 26875867488.

The previous prime is 80631009923. The next prime is 80631009961. The reversal of 80631009936 is 63990013608.

The square root of 80631009936 is 283956.

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

80631009936 is a `hidden beast` number, since 8 + 0 + 631 + 0 + 0 + 9 + 9 + 3 + 6 = 666.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80631009891 and 80631009900.

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, 3395641 + ... + 3419303.

Almost surely, 2^80631009936 is an apocalyptic number.

80631009936 is the 283956-th square number.

It is an amenable number.

80631009936 is an abundant number, since it is smaller than the sum of its proper divisors (145033366963).

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

80631009936 is an frugal number, since it uses more digits than its factorization.

80631009936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47340 (or 23668 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 80631009936 in words is "eighty billion, six hundred thirty-one million, nine thousand, nine hundred thirty-six".