426646662442 has 64 divisors (see below), whose sum is σ = 860435622144. Its totient is φ = 153229501440.

The previous prime is 426646662439. The next prime is 426646662457. The reversal of 426646662442 is 244266646624.

It is a self number, because there is not a number n which added to its sum of digits gives 426646662442.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1322098 + ... + 1612834.

It is an arithmetic number, because the mean of its divisors is an integer number (13444306596).

Almost surely, 2^426646662442 is an apocalyptic number.

426646662442 is an abundant number, since it is smaller than the sum of its proper divisors (433788959702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426646662442 is a wasteful number, since it uses less digits than its factorization.

426646662442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291503.

The product of its digits is 15925248, while the sum is 52.

The spelling of 426646662442 in words is "four hundred twenty-six billion, six hundred forty-six million, six hundred sixty-two thousand, four hundred forty-two".