6418975264 has 48 divisors (see below), whose sum is σ = 13795958232. Its totient is φ = 2922006528.

The previous prime is 6418975259. The next prime is 6418975319. The reversal of 6418975264 is 4625798146.

It can be written as a sum of positive squares in 4 ways, for example, as 4274544400 + 2144430864 = 65380^2 + 46308^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75319 + ... + 136054.

Almost surely, 2^6418975264 is an apocalyptic number.

It is an amenable number.

6418975264 is an abundant number, since it is smaller than the sum of its proper divisors (7376982968).

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

6418975264 is a wasteful number, since it uses less digits than its factorization.

6418975264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211469 (or 211461 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 6418975264 is about 80118.5076246431. The cubic root of 6418975264 is about 1858.4686266147.

The spelling of 6418975264 in words is "six billion, four hundred eighteen million, nine hundred seventy-five thousand, two hundred sixty-four".