3139318609972 has 6 divisors (see below), whose sum is σ = 5493807567458. Its totient is φ = 1569659304984.

The previous prime is 3139318609963. The next prime is 3139318609981. The reversal of 3139318609972 is 2799068139313.

It is an interprime number because it is at equal distance from previous prime (3139318609963) and next prime (3139318609981).

It can be written as a sum of positive squares in only one way, i.e., 2103735581476 + 1035583028496 = 1450426^2 + 1017636^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3139318609972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392414826243 + ... + 392414826250.

Almost surely, 2^{3139318609972} is an apocalyptic number.

It is an amenable number.

3139318609972 is a deficient number, since it is larger than the sum of its proper divisors (2354488957486).

3139318609972 is a wasteful number, since it uses less digits than its factorization.

3139318609972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784829652497 (or 784829652495 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 3139318609972 in words is "three trillion, one hundred thirty-nine billion, three hundred eighteen million, six hundred nine thousand, nine hundred seventy-two".