6931142459 has 2 divisors, whose sum is σ = 6931142460. Its totient is φ = 6931142458.

The previous prime is 6931142453. The next prime is 6931142479. The reversal of 6931142459 is 9542411396.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6931142459 - 2⁸ = 6931142203 is a prime.

It is not a weakly prime, because it can be changed into another prime (6931142453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3465571229 + 3465571230.

It is an arithmetic number, because the mean of its divisors is an integer number (3465571230).

Almost surely, 2^6931142459 is an apocalyptic number.

6931142459 is a deficient number, since it is larger than the sum of its proper divisors (1).

6931142459 is an equidigital number, since it uses as much as digits as its factorization.

6931142459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 6931142459 is about 83253.4831643698. The cubic root of 6931142459 is about 1906.6381345301.

The spelling of 6931142459 in words is "six billion, nine hundred thirty-one million, one hundred forty-two thousand, four hundred fifty-nine".