256630313657467 has 8 divisors (see below), whose sum is σ = 268100382090240. Its totient is φ = 245359724675880.

The previous prime is 256630313657461. The next prime is 256630313657503. The reversal of 256630313657467 is 764756313036652.

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 256630313657467 - 2¹⁹ = 256630313133179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256630313657399 and 256630313657408.

It is not an unprimeable number, because it can be changed into a prime (256630313657461) 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, 49869860167 + ... + 49869865312.

It is an arithmetic number, because the mean of its divisors is an integer number (33512547761280).

Almost surely, 2^{256630313657467} is an apocalyptic number.

256630313657467 is a deficient number, since it is larger than the sum of its proper divisors (11470068432773).

256630313657467 is an equidigital number, since it uses as much as digits as its factorization.

256630313657467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99739725593.

The product of its (nonzero) digits is 342921600, while the sum is 64.

The spelling of 256630313657467 in words is "two hundred fifty-six trillion, six hundred thirty billion, three hundred thirteen million, six hundred fifty-seven thousand, four hundred sixty-seven".