13172474367591 has 16 divisors (see below), whose sum is σ = 21897100247808. Its totient is φ = 6842843827200.

The previous prime is 13172474367587. The next prime is 13172474367629. The reversal of 13172474367591 is 19576347427131.

It is not a de Polignac number, because 13172474367591 - 2² = 13172474367587 is a prime.

It is a super-2 number, since 2×13172474367591² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13172474367791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28511849050 + ... + 28511849511.

It is an arithmetic number, because the mean of its divisors is an integer number (1368568765488).

Almost surely, 2^{13172474367591} is an apocalyptic number.

13172474367591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13172474367591 is a deficient number, since it is larger than the sum of its proper divisors (8724625880217).

13172474367591 is a wasteful number, since it uses less digits than its factorization.

13172474367591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57023698582.

The product of its digits is 26671680, while the sum is 60.

The spelling of 13172474367591 in words is "thirteen trillion, one hundred seventy-two billion, four hundred seventy-four million, three hundred sixty-seven thousand, five hundred ninety-one".