442885676993 has 2 divisors, whose sum is σ = 442885676994. Its totient is φ = 442885676992.

The previous prime is 442885676963. The next prime is 442885677043. The reversal of 442885676993 is 399676588244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334323334849 + 108562342144 = 578207^2 + 329488^2 .

It is a cyclic number.

It is not a de Polignac number, because 442885676993 - 2¹² = 442885672897 is a prime.

It is a super-2 number, since 2×442885676993² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442885676953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221442838496 + 221442838497.

It is an arithmetic number, because the mean of its divisors is an integer number (221442838497).

Almost surely, 2^442885676993 is an apocalyptic number.

It is an amenable number.

442885676993 is a deficient number, since it is larger than the sum of its proper divisors (1).

442885676993 is an equidigital number, since it uses as much as digits as its factorization.

442885676993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 627056640, while the sum is 71.

The spelling of 442885676993 in words is "four hundred forty-two billion, eight hundred eighty-five million, six hundred seventy-six thousand, nine hundred ninety-three".