2556804734 has 16 divisors (see below), whose sum is σ = 4198976496. Its totient is φ = 1157985600.

The previous prime is 2556804721. The next prime is 2556804839. The reversal of 2556804734 is 4374086552.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 203687 + ... + 215874.

It is an arithmetic number, because the mean of its divisors is an integer number (262436031).

Almost surely, 2^2556804734 is an apocalyptic number.

2556804734 is a deficient number, since it is larger than the sum of its proper divisors (1642171762).

2556804734 is a wasteful number, since it uses less digits than its factorization.

2556804734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419851.

The product of its (nonzero) digits is 806400, while the sum is 44.

The square root of 2556804734 is about 50564.8567089832. The cubic root of 2556804734 is about 1367.4113716322.

The spelling of 2556804734 in words is "two billion, five hundred fifty-six million, eight hundred four thousand, seven hundred thirty-four".