442644311475556 has 48 divisors (see below), whose sum is σ = 836546398636032. Its totient is φ = 204512831078400.

The previous prime is 442644311475521. The next prime is 442644311475623. The reversal of 442644311475556 is 655574113446244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 442644311475494 and 442644311475503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925996701 + ... + 926474596.

It is an arithmetic number, because the mean of its divisors is an integer number (17428049971584).

Almost surely, 2^{442644311475556} is an apocalyptic number.

It is an amenable number.

442644311475556 is a deficient number, since it is larger than the sum of its proper divisors (393902087160476).

442644311475556 is a wasteful number, since it uses less digits than its factorization.

442644311475556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852471420 (or 1852471418 counting only the distinct ones).

The product of its digits is 193536000, while the sum is 61.

The spelling of 442644311475556 in words is "four hundred forty-two trillion, six hundred forty-four billion, three hundred eleven million, four hundred seventy-five thousand, five hundred fifty-six".