31504500540 has 72 divisors (see below), whose sum is σ = 95578741440. Its totient is φ = 8399873664.

The previous prime is 31504500497. The next prime is 31504500551. The reversal of 31504500540 is 4500540513.

31504500540 is a `hidden beast` number, since 3 + 150 + 4 + 500 + 5 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1760317 + ... + 1778123.

It is an arithmetic number, because the mean of its divisors is an integer number (1327482520).

Almost surely, 2^31504500540 is an apocalyptic number.

31504500540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31504500540 is an abundant number, since it is smaller than the sum of its proper divisors (64074240900).

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

31504500540 is a wasteful number, since it uses less digits than its factorization.

31504500540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27651 (or 27646 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 31504500540 in words is "thirty-one billion, five hundred four million, five hundred thousand, five hundred forty".