1939739379392 has 28 divisors (see below), whose sum is σ = 3854889837576. Its totient is φ = 968428554240.

The previous prime is 1939739379367. The next prime is 1939739379439. The reversal of 1939739379392 is 2939739379391.

It is a super-2 number, since 2×1939739379392² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 22474334 + ... + 22560477.

Almost surely, 2^{1939739379392} is an apocalyptic number.

It is an amenable number.

1939739379392 is a deficient number, since it is larger than the sum of its proper divisors (1915150458184).

1939739379392 is an equidigital number, since it uses as much as digits as its factorization.

1939739379392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45035496 (or 45035486 counting only the distinct ones).

The product of its digits is 468730962, while the sum is 74.

Subtracting 1939739379392 from its reverse (2939739379391), we obtain a palindrome (999999999999).

The spelling of 1939739379392 in words is "one trillion, nine hundred thirty-nine billion, seven hundred thirty-nine million, three hundred seventy-nine thousand, three hundred ninety-two".