2576641728 has 56 divisors (see below), whose sum is σ = 6824075760. Its totient is φ = 858035200.

The previous prime is 2576641709. The next prime is 2576641741. The reversal of 2576641728 is 8271466752.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 206878 + ... + 218978.

Almost surely, 2^2576641728 is an apocalyptic number.

It is an amenable number.

2576641728 is an abundant number, since it is smaller than the sum of its proper divisors (4247434032).

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

2576641728 is a wasteful number, since it uses less digits than its factorization.

2576641728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13225 (or 13215 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 2576641728 is about 50760.6316745566. The cubic root of 2576641728 is about 1370.9386232985.

The spelling of 2576641728 in words is "two billion, five hundred seventy-six million, six hundred forty-one thousand, seven hundred twenty-eight".