2657797728 has 48 divisors (see below), whose sum is σ = 7015740480. Its totient is φ = 880977536.

The previous prime is 2657797687. The next prime is 2657797739. The reversal of 2657797728 is 8277977562.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 60150 + ... + 94517.

It is an arithmetic number, because the mean of its divisors is an integer number (146161260).

Almost surely, 2^2657797728 is an apocalyptic number.

It is an amenable number.

2657797728 is an abundant number, since it is smaller than the sum of its proper divisors (4357942752).

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

2657797728 is a wasteful number, since it uses less digits than its factorization.

2657797728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154859 (or 154851 counting only the distinct ones).

The product of its digits is 20744640, while the sum is 60.

The square root of 2657797728 is about 51553.8333007353. The cubic root of 2657797728 is about 1385.1834965642.

The spelling of 2657797728 in words is "two billion, six hundred fifty-seven million, seven hundred ninety-seven thousand, seven hundred twenty-eight".