5128956396 has 96 divisors (see below), whose sum is σ = 13528148480. Its totient is φ = 1680098112.

The previous prime is 5128956361. The next prime is 5128956401. The reversal of 5128956396 is 6936598215.

It is a happy number.

5128956396 is a `hidden beast` number, since 51 + 28 + 9 + 563 + 9 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5303505 + ... + 5304471.

Almost surely, 2^5128956396 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 5128956396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6764074240).

5128956396 is an abundant number, since it is smaller than the sum of its proper divisors (8399192084).

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

5128956396 is a wasteful number, since it uses less digits than its factorization.

5128956396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780 (or 1772 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The square root of 5128956396 is about 71616.7326537591. The cubic root of 5128956396 is about 1724.5521650311.

The spelling of 5128956396 in words is "five billion, one hundred twenty-eight million, nine hundred fifty-six thousand, three hundred ninety-six".