256410270799 has 4 divisors (see below), whose sum is σ = 259922740336. Its totient is φ = 252897801264.

The previous prime is 256410270791. The next prime is 256410270811. The reversal of 256410270799 is 997072014652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256410270799 - 2³ = 256410270791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256410270791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756234659 + ... + 1756234804.

It is an arithmetic number, because the mean of its divisors is an integer number (64980685084).

Almost surely, 2^256410270799 is an apocalyptic number.

256410270799 is a deficient number, since it is larger than the sum of its proper divisors (3512469537).

256410270799 is an equidigital number, since it uses as much as digits as its factorization.

256410270799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512469536.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 256410270799 in words is "two hundred fifty-six billion, four hundred ten million, two hundred seventy thousand, seven hundred ninety-nine".