3159811987396 has 9 divisors (see below), whose sum is σ = 5529677199501. Its totient is φ = 1579904216112.

The previous prime is 3159811987369. The next prime is 3159811987427. The reversal of 3159811987396 is 6937891189513.

The square root of 3159811987396 is 1777586.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2657323816900 + 502488170496 = 1630130^2 + 708864^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3110776 + ... + 3999568.

Almost surely, 2^{3159811987396} is an apocalyptic number.

3159811987396 is the 1777586-th square number.

It is an amenable number.

3159811987396 is a deficient number, since it is larger than the sum of its proper divisors (2369865212105).

3159811987396 is an frugal number, since it uses more digits than its factorization.

3159811987396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777590 (or 888795 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 70.

The spelling of 3159811987396 in words is "three trillion, one hundred fifty-nine billion, eight hundred eleven million, nine hundred eighty-seven thousand, three hundred ninety-six".