3100078872 has 128 divisors (see below), whose sum is σ = 9491731200. Its totient is φ = 929664000.

The previous prime is 3100078853. The next prime is 3100078873. The reversal of 3100078872 is 2788700013.

3100078872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3100078872² = 19220978025241584768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100078873) 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, 223747 + ... + 237197.

It is an arithmetic number, because the mean of its divisors is an integer number (74154150).

Almost surely, 2^3100078872 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 3100078872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4745865600).

3100078872 is an abundant number, since it is smaller than the sum of its proper divisors (6391652328).

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

3100078872 is a wasteful number, since it uses less digits than its factorization.

3100078872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13574 (or 13564 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 3100078872 is about 55678.3519152642. The cubic root of 3100078872 is about 1458.1121016619.

Adding to 3100078872 its reverse (2788700013), we get a palindrome (5888778885).

The spelling of 3100078872 in words is "three billion, one hundred million, seventy-eight thousand, eight hundred seventy-two".