3125899788 has 48 divisors (see below), whose sum is σ = 7982857344. Its totient is φ = 944144640.

The previous prime is 3125899783. The next prime is 3125899789. The reversal of 3125899788 is 8879985213.

It is not an unprimeable number, because it can be changed into a prime (3125899781) 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, 1956 + ... + 79092.

It is an arithmetic number, because the mean of its divisors is an integer number (166309528).

Almost surely, 2^3125899788 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 3125899788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3991428672).

3125899788 is an abundant number, since it is smaller than the sum of its proper divisors (4856957556).

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

3125899788 is a wasteful number, since it uses less digits than its factorization.

3125899788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77462 (or 77460 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 60.

The square root of 3125899788 is about 55909.7468067957. The cubic root of 3125899788 is about 1462.1491754316.

The spelling of 3125899788 in words is "three billion, one hundred twenty-five million, eight hundred ninety-nine thousand, seven hundred eighty-eight".