256046746769 has 8 divisors (see below), whose sum is σ = 279859860000. Its totient is φ = 232322989600.

The previous prime is 256046746757. The next prime is 256046746777. The reversal of 256046746769 is 967647640652.

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 256046746769 - 2³² = 251751779473 is a prime.

It is a super-3 number, since 3×256046746769³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256046046769) 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, 22333019 + ... + 22344480.

It is an arithmetic number, because the mean of its divisors is an integer number (34982482500).

Almost surely, 2^256046746769 is an apocalyptic number.

It is an amenable number.

256046746769 is a deficient number, since it is larger than the sum of its proper divisors (23813113231).

256046746769 is a wasteful number, since it uses less digits than its factorization.

256046746769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44678031.

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 256046746769 in words is "two hundred fifty-six billion, forty-six million, seven hundred forty-six thousand, seven hundred sixty-nine".