3939312177428 has 24 divisors (see below), whose sum is σ = 6957856890600. Its totient is φ = 1951357298688.

The previous prime is 3939312177301. The next prime is 3939312177443. The reversal of 3939312177428 is 8247712139393.

It can be written as a sum of positive squares in 4 ways, for example, as 1504052054404 + 2435260123024 = 1226398^2 + 1560532^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3228776 + ... + 4278272.

It is an arithmetic number, because the mean of its divisors is an integer number (289910703775).

Almost surely, 2^{3939312177428} is an apocalyptic number.

It is an amenable number.

3939312177428 is a deficient number, since it is larger than the sum of its proper divisors (3018544713172).

3939312177428 is a wasteful number, since it uses less digits than its factorization.

3939312177428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058219 (or 1058217 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 59.

The spelling of 3939312177428 in words is "three trillion, nine hundred thirty-nine billion, three hundred twelve million, one hundred seventy-seven thousand, four hundred twenty-eight".