2500746728 has 32 divisors (see below), whose sum is σ = 4770129960. Its totient is φ = 1228750080.

The previous prime is 2500746709. The next prime is 2500746739. The reversal of 2500746728 is 8276470052.

2500746728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 984578884 + 1516167844 = 31378^2 + 38938^2 .

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, 844226 + ... + 847182.

Almost surely, 2^2500746728 is an apocalyptic number.

It is an amenable number.

2500746728 is a deficient number, since it is larger than the sum of its proper divisors (2269383232).

2500746728 is a wasteful number, since it uses less digits than its factorization.

2500746728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4753 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 2500746728 is about 50007.4667224806. The cubic root of 2500746728 is about 1357.3439236216.

The spelling of 2500746728 in words is "two billion, five hundred million, seven hundred forty-six thousand, seven hundred twenty-eight".