2528770857 has 32 divisors (see below), whose sum is σ = 3766348800. Its totient is φ = 1501739712.

The previous prime is 2528770841. The next prime is 2528770879. The reversal of 2528770857 is 7580778252.

It is not a de Polignac number, because 2528770857 - 2⁴ = 2528770841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2528770837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61003 + ... + 93695.

It is an arithmetic number, because the mean of its divisors is an integer number (117698400).

Almost surely, 2^2528770857 is an apocalyptic number.

It is an amenable number.

2528770857 is a deficient number, since it is larger than the sum of its proper divisors (1237577943).

2528770857 is a wasteful number, since it uses less digits than its factorization.

2528770857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32797.

The product of its (nonzero) digits is 2195200, while the sum is 51.

The square root of 2528770857 is about 50286.8855368872. The cubic root of 2528770857 is about 1362.3953707159.

The spelling of 2528770857 in words is "two billion, five hundred twenty-eight million, seven hundred seventy thousand, eight hundred fifty-seven".