256535602524467 has 24 divisors (see below), whose sum is σ = 299589180486336. Its totient is φ = 219027068888208.

The previous prime is 256535602524449. The next prime is 256535602524491. The reversal of 256535602524467 is 764425206535652.

It is a happy number.

It is not a de Polignac number, because 256535602524467 - 2¹⁸ = 256535602262323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256535602524667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2926868 + ... + 22839390.

It is an arithmetic number, because the mean of its divisors is an integer number (12482882520264).

Almost surely, 2^{256535602524467} is an apocalyptic number.

256535602524467 is a deficient number, since it is larger than the sum of its proper divisors (43053577961869).

256535602524467 is a wasteful number, since it uses less digits than its factorization.

256535602524467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913567 (or 19913560 counting only the distinct ones).

The product of its (nonzero) digits is 362880000, while the sum is 62.

The spelling of 256535602524467 in words is "two hundred fifty-six trillion, five hundred thirty-five billion, six hundred two million, five hundred twenty-four thousand, four hundred sixty-seven".