13331999939 has 2 divisors, whose sum is σ = 13331999940. Its totient is φ = 13331999938.

The previous prime is 13331999927. The next prime is 13331999987. The reversal of 13331999939 is 93999913331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13331999939 is a prime.

It is not a weakly prime, because it can be changed into another prime (13331999339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665999969 + 6665999970.

It is an arithmetic number, because the mean of its divisors is an integer number (6665999970).

Almost surely, 2^13331999939 is an apocalyptic number.

13331999939 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331999939 is an equidigital number, since it uses as much as digits as its factorization.

13331999939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4782969, while the sum is 59.

The spelling of 13331999939 in words is "thirteen billion, three hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred thirty-nine".