1938329742368 has 24 divisors (see below), whose sum is σ = 3817371312720. Its totient is φ = 968838615360.

The previous prime is 1938329742343. The next prime is 1938329742451. The reversal of 1938329742368 is 8632479238391.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10098938 + ... + 10289081.

It is an arithmetic number, because the mean of its divisors is an integer number (159057138030).

Almost surely, 2^{1938329742368} is an apocalyptic number.

It is an amenable number.

1938329742368 is a deficient number, since it is larger than the sum of its proper divisors (1879041570352).

1938329742368 is a wasteful number, since it uses less digits than its factorization.

1938329742368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20391000 (or 20390992 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 65.

The spelling of 1938329742368 in words is "one trillion, nine hundred thirty-eight billion, three hundred twenty-nine million, seven hundred forty-two thousand, three hundred sixty-eight".