12531291719 has 12 divisors (see below), whose sum is σ = 13323687024. Its totient is φ = 11783614464.

The previous prime is 12531291713. The next prime is 12531291769. The reversal of 12531291719 is 91719213521.

It is not a de Polignac number, because 12531291719 - 2⁸ = 12531291463 is a prime.

It is a super-2 number, since 2×12531291719² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531291713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314414 + ... + 352020.

It is an arithmetic number, because the mean of its divisors is an integer number (1110307252).

Almost surely, 2^12531291719 is an apocalyptic number.

12531291719 is a deficient number, since it is larger than the sum of its proper divisors (792395305).

12531291719 is a wasteful number, since it uses less digits than its factorization.

12531291719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38794 (or 38777 counting only the distinct ones).

The product of its digits is 34020, while the sum is 41.

The spelling of 12531291719 in words is "twelve billion, five hundred thirty-one million, two hundred ninety-one thousand, seven hundred nineteen".