256770329354 has 32 divisors (see below), whose sum is σ = 480230660736. Its totient is φ = 100032721920.

The previous prime is 256770329353. The next prime is 256770329369. The reversal of 256770329354 is 453923077652.

It is a junction number, because it is equal to n+sod(n) for n = 256770329296 and 256770329305.

It is not an unprimeable number, because it can be changed into a prime (256770329353) 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, 2215454 + ... + 2328470.

It is an arithmetic number, because the mean of its divisors is an integer number (15007208148).

Almost surely, 2^256770329354 is an apocalyptic number.

256770329354 is a deficient number, since it is larger than the sum of its proper divisors (223460331382).

256770329354 is a wasteful number, since it uses less digits than its factorization.

256770329354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127790.

The product of its (nonzero) digits is 9525600, while the sum is 53.

The spelling of 256770329354 in words is "two hundred fifty-six billion, seven hundred seventy million, three hundred twenty-nine thousand, three hundred fifty-four".