1944817656020 has 48 divisors (see below), whose sum is σ = 4219883136000. Its totient is φ = 752114722560.

The previous prime is 1944817655933. The next prime is 1944817656037. The reversal of 1944817656020 is 206567184491.

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 15 ways as a sum of consecutive naturals, for example, 844760 + ... + 2145519.

It is an arithmetic number, because the mean of its divisors is an integer number (87914232000).

Almost surely, 2^{1944817656020} is an apocalyptic number.

1944817656020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1944817656020 is an abundant number, since it is smaller than the sum of its proper divisors (2275065479980).

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

1944817656020 is a wasteful number, since it uses less digits than its factorization.

1944817656020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991368 (or 2991366 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 1944817656020 in words is "one trillion, nine hundred forty-four billion, eight hundred seventeen million, six hundred fifty-six thousand, twenty".