556378624271 has 2 divisors, whose sum is σ = 556378624272. Its totient is φ = 556378624270.

The previous prime is 556378624247. The next prime is 556378624297. The reversal of 556378624271 is 172426873655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556378624271 - 2²⁶ = 556311515407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556378624871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278189312135 + 278189312136.

It is an arithmetic number, because the mean of its divisors is an integer number (278189312136).

Almost surely, 2^556378624271 is an apocalyptic number.

556378624271 is a deficient number, since it is larger than the sum of its proper divisors (1).

556378624271 is an equidigital number, since it uses as much as digits as its factorization.

556378624271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16934400, while the sum is 56.

The spelling of 556378624271 in words is "five hundred fifty-six billion, three hundred seventy-eight million, six hundred twenty-four thousand, two hundred seventy-one".