31792869139 has 2 divisors, whose sum is σ = 31792869140. Its totient is φ = 31792869138.

The previous prime is 31792869137. The next prime is 31792869181. The reversal of 31792869139 is 93196829713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31792869139 - 2¹ = 31792869137 is a prime.

Together with 31792869137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31792869133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15896434569 + 15896434570.

It is an arithmetic number, because the mean of its divisors is an integer number (15896434570).

Almost surely, 2^31792869139 is an apocalyptic number.

31792869139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31792869139 is an equidigital number, since it uses as much as digits as its factorization.

31792869139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4408992, while the sum is 58.

The spelling of 31792869139 in words is "thirty-one billion, seven hundred ninety-two million, eight hundred sixty-nine thousand, one hundred thirty-nine".