256334744963 has 16 divisors (see below), whose sum is σ = 281279092320. Its totient is φ = 231667507200.

The previous prime is 256334744959. The next prime is 256334744969. The reversal of 256334744963 is 369447433652.

It is a cyclic number.

It is not a de Polignac number, because 256334744963 - 2² = 256334744959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256334744899 and 256334744908.

It is not an unprimeable number, because it can be changed into a prime (256334744969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349873 + ... + 1528013.

It is an arithmetic number, because the mean of its divisors is an integer number (17579943270).

Almost surely, 2^256334744963 is an apocalyptic number.

256334744963 is a deficient number, since it is larger than the sum of its proper divisors (24944347357).

256334744963 is a wasteful number, since it uses less digits than its factorization.

256334744963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178918.

The product of its digits is 39191040, while the sum is 56.

The spelling of 256334744963 in words is "two hundred fifty-six billion, three hundred thirty-four million, seven hundred forty-four thousand, nine hundred sixty-three".