3491915798172 has 24 divisors (see below), whose sum is σ = 8148109107600. Its totient is φ = 1163928278656.

The previous prime is 3491915798039. The next prime is 3491915798243. The reversal of 3491915798172 is 2718975191943.

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, 5122647 + ... + 5764142.

It is an arithmetic number, because the mean of its divisors is an integer number (339504546150).

Almost surely, 2^{3491915798172} is an apocalyptic number.

It is an amenable number.

3491915798172 is an abundant number, since it is smaller than the sum of its proper divisors (4656193309428).

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

3491915798172 is a wasteful number, since it uses less digits than its factorization.

3491915798172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913525 (or 10913523 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 66.

The spelling of 3491915798172 in words is "three trillion, four hundred ninety-one billion, nine hundred fifteen million, seven hundred ninety-eight thousand, one hundred seventy-two".