12542527431 has 32 divisors (see below), whose sum is σ = 21430886400. Its totient is φ = 7101393120.

The previous prime is 12542527397. The next prime is 12542527441. The reversal of 12542527431 is 13472524521.

12542527431 is a `hidden beast` number, since 12 + 542 + 5 + 2 + 74 + 31 = 666.

It is not a de Polignac number, because 12542527431 - 2¹³ = 12542519239 is a prime.

It is a super-2 number, since 2×12542527431² (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 (12542527441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283815 + ... + 325016.

It is an arithmetic number, because the mean of its divisors is an integer number (669715200).

Almost surely, 2^12542527431 is an apocalyptic number.

12542527431 is a deficient number, since it is larger than the sum of its proper divisors (8888358969).

12542527431 is a wasteful number, since it uses less digits than its factorization.

12542527431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608956 (or 608950 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The spelling of 12542527431 in words is "twelve billion, five hundred forty-two million, five hundred twenty-seven thousand, four hundred thirty-one".