6396488931 has 16 divisors (see below), whose sum is σ = 9752966144. Its totient is φ = 3652910784.

The previous prime is 6396488929. The next prime is 6396488941. The reversal of 6396488931 is 1398846936.

It is a happy number.

It is not a de Polignac number, because 6396488931 - 2¹ = 6396488929 is a prime.

It is a super-2 number, since 2×6396488931² = 81830141288811045522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6396488921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57115 + ... + 126708.

It is an arithmetic number, because the mean of its divisors is an integer number (609560384).

Almost surely, 2^6396488931 is an apocalyptic number.

6396488931 is a deficient number, since it is larger than the sum of its proper divisors (3356477213).

6396488931 is a wasteful number, since it uses less digits than its factorization.

6396488931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185490.

The product of its digits is 6718464, while the sum is 57.

The square root of 6396488931 is about 79978.0528082548. The cubic root of 6396488931 is about 1856.2959517834.

The spelling of 6396488931 in words is "six billion, three hundred ninety-six million, four hundred eighty-eight thousand, nine hundred thirty-one".