442897217667 has 24 divisors (see below), whose sum is σ = 647905197888. Its totient is φ = 291513024000.

The previous prime is 442897217639. The next prime is 442897217717. The reversal of 442897217667 is 766712798244.

It is not a de Polignac number, because 442897217667 - 2³² = 438602250371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442897237667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369259 + ... + 1011012.

It is an arithmetic number, because the mean of its divisors is an integer number (26996049912).

Almost surely, 2^442897217667 is an apocalyptic number.

442897217667 is a deficient number, since it is larger than the sum of its proper divisors (205007980221).

442897217667 is a wasteful number, since it uses less digits than its factorization.

442897217667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380731 (or 1380728 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 442897217667 in words is "four hundred forty-two billion, eight hundred ninety-seven million, two hundred seventeen thousand, six hundred sixty-seven".