2647973128 has 32 divisors (see below), whose sum is σ = 5128796160. Its totient is φ = 1280355840.

The previous prime is 2647973087. The next prime is 2647973149. The reversal of 2647973128 is 8213797462.

It is a happy number.

2647973128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2647973128² = 14023523373220208768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 449176 + ... + 455032.

It is an arithmetic number, because the mean of its divisors is an integer number (160274880).

Almost surely, 2^2647973128 is an apocalyptic number.

It is an amenable number.

2647973128 is a deficient number, since it is larger than the sum of its proper divisors (2480823032).

2647973128 is a wasteful number, since it uses less digits than its factorization.

2647973128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717 (or 7713 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The square root of 2647973128 is about 51458.4602179272. The cubic root of 2647973128 is about 1383.4746034400.

The spelling of 2647973128 in words is "two billion, six hundred forty-seven million, nine hundred seventy-three thousand, one hundred twenty-eight".