3155757872 has 80 divisors (see below), whose sum is σ = 6779298240. Its totient is φ = 1415479296.

The previous prime is 3155757833. The next prime is 3155757877. The reversal of 3155757872 is 2787575513.

It is a self number, because there is not a number n which added to its sum of digits gives 3155757872.

It is not an unprimeable number, because it can be changed into a prime (3155757877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207654 + ... + 2209082.

It is an arithmetic number, because the mean of its divisors is an integer number (84741228).

Almost surely, 2^3155757872 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 3155757872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3389649120).

3155757872 is an abundant number, since it is smaller than the sum of its proper divisors (3623540368).

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

3155757872 is a wasteful number, since it uses less digits than its factorization.

3155757872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1824 counting only the distinct ones).

The product of its digits is 2058000, while the sum is 50.

The square root of 3155757872 is about 56176.1325831531. The cubic root of 3155757872 is about 1466.7898343763.

The spelling of 3155757872 in words is "three billion, one hundred fifty-five million, seven hundred fifty-seven thousand, eight hundred seventy-two".