256236632623 has 2 divisors, whose sum is σ = 256236632624. Its totient is φ = 256236632622.

The previous prime is 256236632567. The next prime is 256236632671. The reversal of 256236632623 is 326236632652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256236632623 - 2²⁵ = 256203078191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256236632423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128118316311 + 128118316312.

It is an arithmetic number, because the mean of its divisors is an integer number (128118316312).

Almost surely, 2^256236632623 is an apocalyptic number.

256236632623 is a deficient number, since it is larger than the sum of its proper divisors (1).

256236632623 is an equidigital number, since it uses as much as digits as its factorization.

256236632623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 46.

The spelling of 256236632623 in words is "two hundred fifty-six billion, two hundred thirty-six million, six hundred thirty-two thousand, six hundred twenty-three".