12999332539 has 2 divisors, whose sum is σ = 12999332540. Its totient is φ = 12999332538.

The previous prime is 12999332509. The next prime is 12999332587. The reversal of 12999332539 is 93523399921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12999332539 - 2²⁷ = 12865114811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12999332539.

It is not a weakly prime, because it can be changed into another prime (12999332509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6499666269 + 6499666270.

It is an arithmetic number, because the mean of its divisors is an integer number (6499666270).

Almost surely, 2^12999332539 is an apocalyptic number.

12999332539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12999332539 is an equidigital number, since it uses as much as digits as its factorization.

12999332539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3542940, while the sum is 55.

The spelling of 12999332539 in words is "twelve billion, nine hundred ninety-nine million, three hundred thirty-two thousand, five hundred thirty-nine".