6446474831 has 12 divisors (see below), whose sum is σ = 7023104064. Its totient is φ = 5910170400.

The previous prime is 6446474821. The next prime is 6446474843. The reversal of 6446474831 is 1384746446.

6446474831 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6446474831 - 2¹⁰ = 6446473807 is a prime.

It is a super-2 number, since 2×6446474831² = 83114075493432957122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446474821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276830 + ... + 299211.

It is an arithmetic number, because the mean of its divisors is an integer number (585258672).

Almost surely, 2^6446474831 is an apocalyptic number.

6446474831 is a deficient number, since it is larger than the sum of its proper divisors (576629233).

6446474831 is a wasteful number, since it uses less digits than its factorization.

6446474831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576110 (or 576091 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 47.

The square root of 6446474831 is about 80289.9422779715. The cubic root of 6446474831 is about 1861.1188041957.

The spelling of 6446474831 in words is "six billion, four hundred forty-six million, four hundred seventy-four thousand, eight hundred thirty-one".