12571426431 has 12 divisors (see below), whose sum is σ = 18162354600. Its totient is φ = 8379276720.

The previous prime is 12571426409. The next prime is 12571426453. The reversal of 12571426431 is 13462417521.

12571426431 is a `hidden beast` number, since 1 + 2 + 5 + 7 + 1 + 4 + 2 + 643 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12571426409) and next prime (12571426453).

It is not a de Polignac number, because 12571426431 - 2¹⁰ = 12571425407 is a prime.

It is a super-2 number, since 2×12571426431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12571426481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91080 + ... + 182861.

It is an arithmetic number, because the mean of its divisors is an integer number (1513529550).

Almost surely, 2^12571426431 is an apocalyptic number.

12571426431 is a deficient number, since it is larger than the sum of its proper divisors (5590928169).

12571426431 is a wasteful number, since it uses less digits than its factorization.

12571426431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279046 (or 279043 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The spelling of 12571426431 in words is "twelve billion, five hundred seventy-one million, four hundred twenty-six thousand, four hundred thirty-one".