3117265872 has 80 divisors (see below), whose sum is σ = 9225635712. Its totient is φ = 888491520.

The previous prime is 3117265871. The next prime is 3117265889. The reversal of 3117265872 is 2785627113.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3117265871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130438 + ... + 152474.

Almost surely, 2^3117265872 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 3117265872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4612817856).

3117265872 is an abundant number, since it is smaller than the sum of its proper divisors (6108369840).

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

3117265872 is a wasteful number, since it uses less digits than its factorization.

3117265872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22476 (or 22470 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 3117265872 is about 55832.4804392569. The cubic root of 3117265872 is about 1460.8017539219.

The spelling of 3117265872 in words is "three billion, one hundred seventeen million, two hundred sixty-five thousand, eight hundred seventy-two".