3938719974144 has 144 divisors (see below), whose sum is σ = 11117833246464. Its totient is φ = 1235236147200.

The previous prime is 3938719974139. The next prime is 3938719974197. The reversal of 3938719974144 is 4414799178393.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750202 + ... + 2905209.

Almost surely, 2^{3938719974144} is an apocalyptic number.

It is an amenable number.

3938719974144 is an abundant number, since it is smaller than the sum of its proper divisors (7179113272320).

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

3938719974144 is a wasteful number, since it uses less digits than its factorization.

3938719974144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655514 (or 3655500 counting only the distinct ones).

The product of its digits is 164602368, while the sum is 69.

The spelling of 3938719974144 in words is "three trillion, nine hundred thirty-eight billion, seven hundred nineteen million, nine hundred seventy-four thousand, one hundred forty-four".