442986517824 has 56 divisors (see below), whose sum is σ = 1189562089248. Its totient is φ = 145458255360.

The previous prime is 442986517817. The next prime is 442986517873. The reversal of 442986517824 is 428715689244.

It is a happy number.

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, 17205207 + ... + 17230934.

Almost surely, 2^442986517824 is an apocalyptic number.

It is an amenable number.

442986517824 is an abundant number, since it is smaller than the sum of its proper divisors (746575571424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442986517824 is a wasteful number, since it uses less digits than its factorization.

442986517824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34436223 (or 34436213 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 60.

The spelling of 442986517824 in words is "four hundred forty-two billion, nine hundred eighty-six million, five hundred seventeen thousand, eight hundred twenty-four".