2256904779 has 16 divisors (see below), whose sum is σ = 3065041920. Its totient is φ = 1476790560.

The previous prime is 2256904753. The next prime is 2256904807. The reversal of 2256904779 is 9774096522.

It is not a de Polignac number, because 2256904779 - 2⁸ = 2256904523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2256904679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74784 + ... + 100530.

It is an arithmetic number, because the mean of its divisors is an integer number (191565120).

Almost surely, 2^2256904779 is an apocalyptic number.

2256904779 is a deficient number, since it is larger than the sum of its proper divisors (808137141).

2256904779 is a wasteful number, since it uses less digits than its factorization.

2256904779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26290.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 2256904779 is about 47506.8919105428. The cubic root of 2256904779 is about 1311.7097460719.

The spelling of 2256904779 in words is "two billion, two hundred fifty-six million, nine hundred four thousand, seven hundred seventy-nine".