6924139931 has 2 divisors, whose sum is σ = 6924139932. Its totient is φ = 6924139930.

The previous prime is 6924139891. The next prime is 6924140011. The reversal of 6924139931 is 1399314296.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6924139931 - 2⁶ = 6924139867 is a prime.

It is a super-2 number, since 2×6924139931² = 95887427568137369522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6924139031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3462069965 + 3462069966.

It is an arithmetic number, because the mean of its divisors is an integer number (3462069966).

Almost surely, 2^6924139931 is an apocalyptic number.

6924139931 is a deficient number, since it is larger than the sum of its proper divisors (1).

6924139931 is an equidigital number, since it uses as much as digits as its factorization.

6924139931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 6924139931 is about 83211.4170712169. The cubic root of 6924139931 is about 1905.9958264838.

The spelling of 6924139931 in words is "six billion, nine hundred twenty-four million, one hundred thirty-nine thousand, nine hundred thirty-one".