402256475827 has 2 divisors, whose sum is σ = 402256475828. Its totient is φ = 402256475826.

The previous prime is 402256475801. The next prime is 402256475833. The reversal of 402256475827 is 728574652204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402256475827 - 2²⁷ = 402122258099 is a prime.

It is not a weakly prime, because it can be changed into another prime (402256475627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201128237913 + 201128237914.

It is an arithmetic number, because the mean of its divisors is an integer number (201128237914).

Almost surely, 2^402256475827 is an apocalyptic number.

402256475827 is a deficient number, since it is larger than the sum of its proper divisors (1).

402256475827 is an equidigital number, since it uses as much as digits as its factorization.

402256475827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7526400, while the sum is 52.

The spelling of 402256475827 in words is "four hundred two billion, two hundred fifty-six million, four hundred seventy-five thousand, eight hundred twenty-seven".