13631203968 has 32 divisors (see below), whose sum is σ = 36207886560. Its totient is φ = 4543734528.

The previous prime is 13631203961. The next prime is 13631203969. The reversal of 13631203968 is 86930213631.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (13631203961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17748580 + ... + 17749347.

It is an arithmetic number, because the mean of its divisors is an integer number (1131496455).

Almost surely, 2^13631203968 is an apocalyptic number.

It is an amenable number.

13631203968 is an abundant number, since it is smaller than the sum of its proper divisors (22576682592).

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

13631203968 is an equidigital number, since it uses as much as digits as its factorization.

13631203968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35497944 (or 35497932 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 13631203968 in words is "thirteen billion, six hundred thirty-one million, two hundred three thousand, nine hundred sixty-eight".