6431390496 has 96 divisors (see below), whose sum is σ = 19861692480. Its totient is φ = 2017686528.

The previous prime is 6431390477. The next prime is 6431390507. The reversal of 6431390496 is 6940931346.

6431390496 is a `hidden beast` number, since 64 + 3 + 13 + 90 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204246 + ... + 233621.

It is an arithmetic number, because the mean of its divisors is an integer number (206892630).

Almost surely, 2^6431390496 is an apocalyptic number.

It is an amenable number.

6431390496 is an abundant number, since it is smaller than the sum of its proper divisors (13430301984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6431390496 is a wasteful number, since it uses less digits than its factorization.

6431390496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437903 (or 437889 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 6431390496 is about 80195.9506209634. The cubic root of 6431390496 is about 1859.6660378556. Note that the first 3 decimals are identical.

The spelling of 6431390496 in words is "six billion, four hundred thirty-one million, three hundred ninety thousand, four hundred ninety-six".