12693524537 has 2 divisors, whose sum is σ = 12693524538. Its totient is φ = 12693524536.

The previous prime is 12693524531. The next prime is 12693524549. The reversal of 12693524537 is 73542539621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10818288121 + 1875236416 = 104011^2 + 43304^2 .

It is a cyclic number.

It is not a de Polignac number, because 12693524537 - 2²⁶ = 12626415673 is a prime.

It is a super-2 number, since 2×12693524537² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12693524491 and 12693524500.

It is not a weakly prime, because it can be changed into another prime (12693524531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6346762268 + 6346762269.

It is an arithmetic number, because the mean of its divisors is an integer number (6346762269).

Almost surely, 2^12693524537 is an apocalyptic number.

It is an amenable number.

12693524537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12693524537 is an equidigital number, since it uses as much as digits as its factorization.

12693524537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 47.

The spelling of 12693524537 in words is "twelve billion, six hundred ninety-three million, five hundred twenty-four thousand, five hundred thirty-seven".