1942856404656 has 80 divisors (see below), whose sum is σ = 5033904000000. Its totient is φ = 645703052544.

The previous prime is 1942856404631. The next prime is 1942856404667. The reversal of 1942856404656 is 6564046582491.

It is a happy number.

It is a super-2 number, since 2×1942856404656² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1942856404656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45694095 + ... + 45736593.

It is an arithmetic number, because the mean of its divisors is an integer number (62923800000).

Almost surely, 2^{1942856404656} is an apocalyptic number.

1942856404656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1942856404656 is an abundant number, since it is smaller than the sum of its proper divisors (3091047595344).

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

1942856404656 is a wasteful number, since it uses less digits than its factorization.

1942856404656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45306 (or 45300 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 1942856404656 in words is "one trillion, nine hundred forty-two billion, eight hundred fifty-six million, four hundred four thousand, six hundred fifty-six".