442856370813784 has 64 divisors (see below), whose sum is σ = 895735869012000. Its totient is φ = 204499649894400.

The previous prime is 442856370813763. The next prime is 442856370813817. The reversal of 442856370813784 is 487318073658244.

It is a super-2 number, since 2×442856370813784² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59906334 + ... + 66891565.

Almost surely, 2^{442856370813784} is an apocalyptic number.

It is an amenable number.

442856370813784 is an abundant number, since it is smaller than the sum of its proper divisors (452879498198216).

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

442856370813784 is a wasteful number, since it uses less digits than its factorization.

442856370813784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126798404 (or 126798400 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 70.

The spelling of 442856370813784 in words is "four hundred forty-two trillion, eight hundred fifty-six billion, three hundred seventy million, eight hundred thirteen thousand, seven hundred eighty-four".