256623324477283 has 2 divisors, whose sum is σ = 256623324477284. Its totient is φ = 256623324477282.

The previous prime is 256623324477011. The next prime is 256623324477349. The reversal of 256623324477283 is 382774423326652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256623324477283 - 2²⁵ = 256623290922851 is a prime.

It is a super-2 number, since 2×256623324477283² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (256623324477683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128311662238641 + 128311662238642.

It is an arithmetic number, because the mean of its divisors is an integer number (128311662238642).

Almost surely, 2^{256623324477283} is an apocalyptic number.

256623324477283 is a deficient number, since it is larger than the sum of its proper divisors (1).

256623324477283 is an equidigital number, since it uses as much as digits as its factorization.

256623324477283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 487710720, while the sum is 64.

The spelling of 256623324477283 in words is "two hundred fifty-six trillion, six hundred twenty-three billion, three hundred twenty-four million, four hundred seventy-seven thousand, two hundred eighty-three".