12537032539 has 2 divisors, whose sum is σ = 12537032540. Its totient is φ = 12537032538.

The previous prime is 12537032537. The next prime is 12537032633. The reversal of 12537032539 is 93523073521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12537032539 - 2¹ = 12537032537 is a prime.

Together with 12537032537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12537032537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268516269 + 6268516270.

It is an arithmetic number, because the mean of its divisors is an integer number (6268516270).

Almost surely, 2^12537032539 is an apocalyptic number.

12537032539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537032539 is an equidigital number, since it uses as much as digits as its factorization.

12537032539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 40.

The spelling of 12537032539 in words is "twelve billion, five hundred thirty-seven million, thirty-two thousand, five hundred thirty-nine".