256460507669 has 8 divisors (see below), whose sum is σ = 258542557152. Its totient is φ = 254380342320.

The previous prime is 256460507617. The next prime is 256460507671. The reversal of 256460507669 is 966705064652.

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 256460507669 - 2³⁶ = 187741030933 is a prime.

It is a super-2 number, since 2×256460507669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256460507269) 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, 197054 + ... + 742799.

It is an arithmetic number, because the mean of its divisors is an integer number (32317819644).

Almost surely, 2^256460507669 is an apocalyptic number.

It is an amenable number.

256460507669 is a deficient number, since it is larger than the sum of its proper divisors (2082049483).

256460507669 is a wasteful number, since it uses less digits than its factorization.

256460507669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942067.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 256460507669 in words is "two hundred fifty-six billion, four hundred sixty million, five hundred seven thousand, six hundred sixty-nine".