402256475878 has 16 divisors (see below), whose sum is σ = 621554517360. Its totient is φ = 195126448000.

The previous prime is 402256475833. The next prime is 402256475879. The reversal of 402256475878 is 878574652204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402256475879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13688023 + ... + 13717378.

It is an arithmetic number, because the mean of its divisors is an integer number (38847157335).

Almost surely, 2^402256475878 is an apocalyptic number.

402256475878 is a deficient number, since it is larger than the sum of its proper divisors (219298041482).

402256475878 is a wasteful number, since it uses less digits than its factorization.

402256475878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27405623.

The product of its (nonzero) digits is 30105600, while the sum is 58.

The spelling of 402256475878 in words is "four hundred two billion, two hundred fifty-six million, four hundred seventy-five thousand, eight hundred seventy-eight".