5128235712 has 140 divisors (see below), whose sum is σ = 15416912016. Its totient is φ = 1685214720.

The previous prime is 5128235701. The next prime is 5128235731. The reversal of 5128235712 is 2175328215.

5128235712 is a `hidden beast` number, since 5 + 1 + 2 + 82 + 3 + 571 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 361098 + ... + 375030.

Almost surely, 2^5128235712 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 5128235712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7708456008).

5128235712 is an abundant number, since it is smaller than the sum of its proper divisors (10288676304).

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

5128235712 is a wasteful number, since it uses less digits than its factorization.

5128235712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14028 (or 14009 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 5128235712 is about 71611.7009433514. The cubic root of 5128235712 is about 1724.4713873658.

The spelling of 5128235712 in words is "five billion, one hundred twenty-eight million, two hundred thirty-five thousand, seven hundred twelve".