6479451931 has 2 divisors, whose sum is σ = 6479451932. Its totient is φ = 6479451930.

The previous prime is 6479451919. The next prime is 6479452019. The reversal of 6479451931 is 1391549746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6479451931 - 2⁵ = 6479451899 is a prime.

It is a super-2 number, since 2×6479451931² = 83966594652279257522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6479451911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239725965 + 3239725966.

It is an arithmetic number, because the mean of its divisors is an integer number (3239725966).

Almost surely, 2^6479451931 is an apocalyptic number.

6479451931 is a deficient number, since it is larger than the sum of its proper divisors (1).

6479451931 is an equidigital number, since it uses as much as digits as its factorization.

6479451931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 6479451931 is about 80495.0428970629. The cubic root of 6479451931 is about 1864.2869410468.

The spelling of 6479451931 in words is "six billion, four hundred seventy-nine million, four hundred fifty-one thousand, nine hundred thirty-one".