12693524531 has 2 divisors, whose sum is σ = 12693524532. Its totient is φ = 12693524530.

The previous prime is 12693524509. The next prime is 12693524537. The reversal of 12693524531 is 13542539621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12693524531 is a prime.

It is a super-2 number, since 2×12693524531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12693524537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6346762265 + 6346762266.

It is an arithmetic number, because the mean of its divisors is an integer number (6346762266).

Almost surely, 2^12693524531 is an apocalyptic number.

12693524531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12693524531 is an equidigital number, since it uses as much as digits as its factorization.

12693524531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The spelling of 12693524531 in words is "twelve billion, six hundred ninety-three million, five hundred twenty-four thousand, five hundred thirty-one".