13172197968 has 60 divisors (see below), whose sum is σ = 38229199008. Its totient is φ = 4390731360.

The previous prime is 13172197933. The next prime is 13172198033. The reversal of 13172197968 is 86979127131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690068 + ... + 1697843.

Almost surely, 2^13172197968 is an apocalyptic number.

13172197968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13172197968 is an abundant number, since it is smaller than the sum of its proper divisors (25057001040).

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

13172197968 is an equidigital number, since it uses as much as digits as its factorization.

13172197968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387934 (or 3387916 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The spelling of 13172197968 in words is "thirteen billion, one hundred seventy-two million, one hundred ninety-seven thousand, nine hundred sixty-eight".