6622748864 has 28 divisors (see below), whose sum is σ = 13229069808. Its totient is φ = 3289440000.

The previous prime is 6622748849. The next prime is 6622748911. The reversal of 6622748864 is 4688472266.

It is a super-2 number, since 2×6622748864² = 87721605031226580992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332987 + ... + 352314.

Almost surely, 2^6622748864 is an apocalyptic number.

6622748864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6622748864 is a deficient number, since it is larger than the sum of its proper divisors (6606320944).

6622748864 is a wasteful number, since it uses less digits than its factorization.

6622748864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685464 (or 685454 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 53.

The square root of 6622748864 is about 81380.2731870568. The cubic root of 6622748864 is about 1877.9301257137.

The spelling of 6622748864 in words is "six billion, six hundred twenty-two million, seven hundred forty-eight thousand, eight hundred sixty-four".