256473067433183 has 4 divisors (see below), whose sum is σ = 256502584425120. Its totient is φ = 256443550441248.

The previous prime is 256473067433153. The next prime is 256473067433197. The reversal of 256473067433183 is 381334760374652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256473067433183 - 2¹⁸ = 256473067171039 is a prime.

It is a super-2 number, since 2×256473067433183² (a number of 30 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 (256473067433153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14758482935 + ... + 14758500312.

It is an arithmetic number, because the mean of its divisors is an integer number (64125646106280).

Almost surely, 2^{256473067433183} is an apocalyptic number.

256473067433183 is a deficient number, since it is larger than the sum of its proper divisors (29516991937).

256473067433183 is an equidigital number, since it uses as much as digits as its factorization.

256473067433183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29516991936.

The product of its (nonzero) digits is 182891520, while the sum is 62.

The spelling of 256473067433183 in words is "two hundred fifty-six trillion, four hundred seventy-three billion, sixty-seven million, four hundred thirty-three thousand, one hundred eighty-three".