3939231319394 has 24 divisors (see below), whose sum is σ = 6873906999708. Its totient is φ = 1688155953120.

The previous prime is 3939231319327. The next prime is 3939231319421. The reversal of 3939231319394 is 4939131329393.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3862620276025 + 76611043369 = 1965355^2 + 276787^2 .

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927284 + ... + 2956064.

Almost surely, 2^{3939231319394} is an apocalyptic number.

3939231319394 is a deficient number, since it is larger than the sum of its proper divisors (2934675680314).

3939231319394 is a wasteful number, since it uses less digits than its factorization.

3939231319394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048610 (or 2048603 counting only the distinct ones).

The product of its digits is 12754584, while the sum is 59.

Subtracting 3939231319394 from its reverse (4939131329393), we obtain a palindrome (999900009999).

The spelling of 3939231319394 in words is "three trillion, nine hundred thirty-nine billion, two hundred thirty-one million, three hundred nineteen thousand, three hundred ninety-four".