2597700128 has 24 divisors (see below), whose sum is σ = 5198065740. Its totient is φ = 1277556480.

The previous prime is 2597700073. The next prime is 2597700139. The reversal of 2597700128 is 8210077952.

It can be written as a sum of positive squares in 2 ways, for example, as 2287517584 + 310182544 = 47828^2 + 17612^2 .

It is a super-2 number, since 2×2597700128² = 13496091910022432768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663443 + ... + 667346.

Almost surely, 2^2597700128 is an apocalyptic number.

It is an amenable number.

2597700128 is an abundant number, since it is smaller than the sum of its proper divisors (2600365612).

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

2597700128 is a wasteful number, since it uses less digits than its factorization.

2597700128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330860 (or 1330852 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 2597700128 is about 50967.6380461171. The cubic root of 2597700128 is about 1374.6633010076.

The spelling of 2597700128 in words is "two billion, five hundred ninety-seven million, seven hundred thousand, one hundred twenty-eight".