442602431142646 has 16 divisors (see below), whose sum is σ = 707166124582176. Its totient is φ = 207036290436736.

The previous prime is 442602431142593. The next prime is 442602431142661. The reversal of 442602431142646 is 646241134206244.

It is a self number, because there is not a number n which added to its sum of digits gives 442602431142646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38975199601 + ... + 38975210956.

It is an arithmetic number, because the mean of its divisors is an integer number (44197882786386).

Almost surely, 2^{442602431142646} is an apocalyptic number.

442602431142646 is a deficient number, since it is larger than the sum of its proper divisors (264563693439530).

442602431142646 is a wasteful number, since it uses less digits than its factorization.

442602431142646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77950410743.

The product of its (nonzero) digits is 5308416, while the sum is 49.

The spelling of 442602431142646 in words is "four hundred forty-two trillion, six hundred two billion, four hundred thirty-one million, one hundred forty-two thousand, six hundred forty-six".