256679769359 has 8 divisors (see below), whose sum is σ = 276437635152. Its totient is φ = 236923799040.

The previous prime is 256679769223. The next prime is 256679769373. The reversal of 256679769359 is 953967976652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256679769359 - 2²⁴ = 256662992143 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 (256679769959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186137 + ... + 740274.

It is an arithmetic number, because the mean of its divisors is an integer number (34554704394).

Almost surely, 2^256679769359 is an apocalyptic number.

256679769359 is a deficient number, since it is larger than the sum of its proper divisors (19757865793).

256679769359 is a wasteful number, since it uses less digits than its factorization.

256679769359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947737.

The product of its digits is 1157360400, while the sum is 74.

The spelling of 256679769359 in words is "two hundred fifty-six billion, six hundred seventy-nine million, seven hundred sixty-nine thousand, three hundred fifty-nine".