442281661199 has 12 divisors (see below), whose sum is σ = 515156532984. Its totient is φ = 378608109264.

The previous prime is 442281661181. The next prime is 442281661201. The reversal of 442281661199 is 991166182244.

It is a de Polignac number, because none of the positive numbers 2^k-442281661199 is a prime.

It is a super-2 number, since 2×442281661199² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442281661199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442281661169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5800517 + ... + 5876270.

It is an arithmetic number, because the mean of its divisors is an integer number (42929711082).

Almost surely, 2^442281661199 is an apocalyptic number.

442281661199 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

442281661199 is a deficient number, since it is larger than the sum of its proper divisors (72874871785).

442281661199 is a wasteful number, since it uses less digits than its factorization.

442281661199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11677574 (or 11677567 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 53.

The spelling of 442281661199 in words is "four hundred forty-two billion, two hundred eighty-one million, six hundred sixty-one thousand, one hundred ninety-nine".