256623245234373 has 32 divisors (see below), whose sum is σ = 350607126519936. Its totient is φ = 166871883322368.

The previous prime is 256623245234353. The next prime is 256623245234393. The reversal of 256623245234373 is 373432542326652.

256623245234373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256623245234353) and next prime (256623245234393).

It is not a de Polignac number, because 256623245234373 - 2⁶ = 256623245234309 is a prime.

It is a super-2 number, since 2×256623245234373² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256623245234303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 507959665 + ... + 508464617.

It is an arithmetic number, because the mean of its divisors is an integer number (10956472703748).

Almost surely, 2^{256623245234373} is an apocalyptic number.

It is an amenable number.

256623245234373 is a deficient number, since it is larger than the sum of its proper divisors (93983881285563).

256623245234373 is a wasteful number, since it uses less digits than its factorization.

256623245234373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510453.

The product of its digits is 130636800, while the sum is 57.

The spelling of 256623245234373 in words is "two hundred fifty-six trillion, six hundred twenty-three billion, two hundred forty-five million, two hundred thirty-four thousand, three hundred seventy-three".