402612908218 has 16 divisors (see below), whose sum is σ = 611313972480. Its totient is φ = 198850834000.

The previous prime is 402612908213. The next prime is 402612908237. The reversal of 402612908218 is 812809216204.

It is not an unprimeable number, because it can be changed into a prime (402612908213) 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 in 7 ways as a sum of consecutive naturals, for example, 2225158 + ... + 2399281.

It is an arithmetic number, because the mean of its divisors is an integer number (38207123280).

Almost surely, 2^402612908218 is an apocalyptic number.

402612908218 is a deficient number, since it is larger than the sum of its proper divisors (208701064262).

402612908218 is a wasteful number, since it uses less digits than its factorization.

402612908218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624973.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 402612908218 in words is "four hundred two billion, six hundred twelve million, nine hundred eight thousand, two hundred eighteen".