3939238784976 has 160 divisors (see below), whose sum is σ = 12373179494400. Its totient is φ = 1064359434240.

The previous prime is 3939238784947. The next prime is 3939238785019. The reversal of 3939238784976 is 6794878329393.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11378496 + ... + 11719583.

It is an arithmetic number, because the mean of its divisors is an integer number (77332371840).

Almost surely, 2^{3939238784976} is an apocalyptic number.

It is an amenable number.

3939238784976 is an abundant number, since it is smaller than the sum of its proper divisors (8433940709424).

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

3939238784976 is a wasteful number, since it uses less digits than its factorization.

3939238784976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23098137 (or 23098131 counting only the distinct ones).

The product of its digits is 2962842624, while the sum is 78.

The spelling of 3939238784976 in words is "three trillion, nine hundred thirty-nine billion, two hundred thirty-eight million, seven hundred eighty-four thousand, nine hundred seventy-six".