402256475879 has 2 divisors, whose sum is σ = 402256475880. Its totient is φ = 402256475878.

The previous prime is 402256475833. The next prime is 402256475891. The reversal of 402256475879 is 978574652204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402256475879 - 2¹⁶ = 402256410343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402256475779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201128237939 + 201128237940.

It is an arithmetic number, because the mean of its divisors is an integer number (201128237940).

Almost surely, 2^402256475879 is an apocalyptic number.

402256475879 is a deficient number, since it is larger than the sum of its proper divisors (1).

402256475879 is an equidigital number, since it uses as much as digits as its factorization.

402256475879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 402256475879 in words is "four hundred two billion, two hundred fifty-six million, four hundred seventy-five thousand, eight hundred seventy-nine".