6400056264 has 64 divisors (see below), whose sum is σ = 18293744640. Its totient is φ = 1827800640.

The previous prime is 6400056259. The next prime is 6400056269. The reversal of 6400056264 is 4626500046.

It is an interprime number because it is at equal distance from previous prime (6400056259) and next prime (6400056269).

It is not an unprimeable number, because it can be changed into a prime (6400056269) by changing a digit.

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, 464109 + ... + 477699.

It is an arithmetic number, because the mean of its divisors is an integer number (285839760).

Almost surely, 2^6400056264 is an apocalyptic number.

It is an amenable number.

6400056264 is an abundant number, since it is smaller than the sum of its proper divisors (11893688376).

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

6400056264 is a wasteful number, since it uses less digits than its factorization.

6400056264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410 (or 16406 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 6400056264 is about 80000.3516492271. The cubic root of 6400056264 is about 1856.6409741449.

The spelling of 6400056264 in words is "six billion, four hundred million, fifty-six thousand, two hundred sixty-four".