256733411537423 has 8 divisors (see below), whose sum is σ = 266163818958576. Its totient is φ = 247453890635200.

The previous prime is 256733411537353. The next prime is 256733411537453. The reversal of 256733411537423 is 324735114337652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256733411537423 - 2⁴⁴ = 239141225493007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256733411537453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37721626268 + ... + 37721633073.

It is an arithmetic number, because the mean of its divisors is an integer number (33270477369822).

Almost surely, 2^{256733411537423} is an apocalyptic number.

256733411537423 is a deficient number, since it is larger than the sum of its proper divisors (9430407421153).

256733411537423 is an equidigital number, since it uses as much as digits as its factorization.

256733411537423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75443259465.

The product of its digits is 38102400, while the sum is 56.

The spelling of 256733411537423 in words is "two hundred fifty-six trillion, seven hundred thirty-three billion, four hundred eleven million, five hundred thirty-seven thousand, four hundred twenty-three".