3159918906172 has 96 divisors (see below), whose sum is σ = 6756583680000. Its totient is φ = 1262222466048.

The previous prime is 3159918906073. The next prime is 3159918906173. The reversal of 3159918906172 is 2716098199513.

It is a self number, because there is not a number n which added to its sum of digits gives 3159918906172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3159918906173) 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, 103700883 + ... + 103731349.

It is an arithmetic number, because the mean of its divisors is an integer number (70381080000).

Almost surely, 2^{3159918906172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3159918906172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3378291840000).

3159918906172 is an abundant number, since it is smaller than the sum of its proper divisors (3596664773828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3159918906172 is a wasteful number, since it uses less digits than its factorization.

3159918906172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32603 (or 32601 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 61.

The spelling of 3159918906172 in words is "three trillion, one hundred fifty-nine billion, nine hundred eighteen million, nine hundred six thousand, one hundred seventy-two".