31180314480 has 80 divisors (see below), whose sum is σ = 110467405824. Its totient is φ = 7126928640.

The previous prime is 31180314463. The next prime is 31180314491. The reversal of 31180314480 is 8441308113.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×31180314480² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9278176 + ... + 9281535.

Almost surely, 2^31180314480 is an apocalyptic number.

31180314480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31180314480 is an abundant number, since it is smaller than the sum of its proper divisors (79287091344).

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

31180314480 is a wasteful number, since it uses less digits than its factorization.

31180314480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18559734 (or 18559728 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 31180314480 in words is "thirty-one billion, one hundred eighty million, three hundred fourteen thousand, four hundred eighty".