31325516149632 has 64 divisors (see below), whose sum is σ = 84348243474960. Its totient is φ = 10298799820800.

The previous prime is 31325516149549. The next prime is 31325516149633. The reversal of 31325516149632 is 23694161552313.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×31325516149632² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31325516149633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558717619 + ... + 558773682.

Almost surely, 2^{31325516149632} is an apocalyptic number.

31325516149632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31325516149632 is an abundant number, since it is smaller than the sum of its proper divisors (53022727325328).

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

31325516149632 is a wasteful number, since it uses less digits than its factorization.

31325516149632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117491391 (or 1117491379 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The spelling of 31325516149632 in words is "thirty-one trillion, three hundred twenty-five billion, five hundred sixteen million, one hundred forty-nine thousand, six hundred thirty-two".