1920933455944 has 8 divisors (see below), whose sum is σ = 3601750229910. Its totient is φ = 960466727968.

The previous prime is 1920933455939. The next prime is 1920933455977. The reversal of 1920933455944 is 4495543390291.

It can be written as a sum of positive squares in only one way, i.e., 1269313183044 + 651620272900 = 1126638^2 + 807230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1920933455944² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120058340989 + ... + 120058341004.

Almost surely, 2^{1920933455944} is an apocalyptic number.

It is an amenable number.

1920933455944 is a deficient number, since it is larger than the sum of its proper divisors (1680816773966).

1920933455944 is a wasteful number, since it uses less digits than its factorization.

1920933455944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240116681999 (or 240116681995 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 58.

The spelling of 1920933455944 in words is "one trillion, nine hundred twenty billion, nine hundred thirty-three million, four hundred fifty-five thousand, nine hundred forty-four".