1938329742344 has 16 divisors (see below), whose sum is σ = 3635221669200. Its totient is φ = 968937297232.

The previous prime is 1938329742343. The next prime is 1938329742451. The reversal of 1938329742344 is 4432479238391.

It is a super-2 number, since 2×1938329742344² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1938329742343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28410542 + ... + 28478685.

It is an arithmetic number, because the mean of its divisors is an integer number (227201354325).

Almost surely, 2^{1938329742344} is an apocalyptic number.

It is an amenable number.

1938329742344 is a deficient number, since it is larger than the sum of its proper divisors (1696891926856).

1938329742344 is a wasteful number, since it uses less digits than its factorization.

1938329742344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56893492 (or 56893488 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 59.

The spelling of 1938329742344 in words is "one trillion, nine hundred thirty-eight billion, three hundred twenty-nine million, seven hundred forty-two thousand, three hundred forty-four".