3139999128 has 256 divisors, whose sum is σ = 10857600000. Its totient is φ = 820399104.

The previous prime is 3139999097. The next prime is 3139999193. The reversal of 3139999128 is 8219999313.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 831228 + ... + 834996.

It is an arithmetic number, because the mean of its divisors is an integer number (42412500).

Almost surely, 2^3139999128 is an apocalyptic number.

3139999128 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3139999128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5428800000).

3139999128 is an abundant number, since it is smaller than the sum of its proper divisors (7717600872).

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

3139999128 is a wasteful number, since it uses less digits than its factorization.

3139999128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839 (or 3829 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 3139999128 is about 56035.6951237334. The cubic root of 3139999128 is about 1464.3442149502.

The spelling of 3139999128 in words is "three billion, one hundred thirty-nine million, nine hundred ninety-nine thousand, one hundred twenty-eight".