2556309248770 has 16 divisors (see below), whose sum is σ = 4749787507968. Its totient is φ = 989539063920.

The previous prime is 2556309248737. The next prime is 2556309248791. The reversal of 2556309248770 is 778429036552.

It is a happy 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, 4123079124 + ... + 4123079743.

It is an arithmetic number, because the mean of its divisors is an integer number (296861719248).

Almost surely, 2^{2556309248770} is an apocalyptic number.

2556309248770 is a deficient number, since it is larger than the sum of its proper divisors (2193478259198).

2556309248770 is a wasteful number, since it uses less digits than its factorization.

2556309248770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246158905.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 2556309248770 in words is "two trillion, five hundred fifty-six billion, three hundred nine million, two hundred forty-eight thousand, seven hundred seventy".