3942239777517 has 32 divisors (see below), whose sum is σ = 5757652817280. Its totient is φ = 2388174243840.

The previous prime is 3942239777477. The next prime is 3942239777519. The reversal of 3942239777517 is 7157779322493.

It is not a de Polignac number, because 3942239777517 - 2¹⁰ = 3942239776493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942239777519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71427342 + ... + 71482512.

It is an arithmetic number, because the mean of its divisors is an integer number (179926650540).

Almost surely, 2^{3942239777517} is an apocalyptic number.

It is an amenable number.

3942239777517 is a deficient number, since it is larger than the sum of its proper divisors (1815413039763).

3942239777517 is a wasteful number, since it uses less digits than its factorization.

3942239777517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103533.

The product of its digits is 140026320, while the sum is 66.

The spelling of 3942239777517 in words is "three trillion, nine hundred forty-two billion, two hundred thirty-nine million, seven hundred seventy-seven thousand, five hundred seventeen".