5128766725 has 24 divisors (see below), whose sum is σ = 6606720000. Its totient is φ = 3944821440.

The previous prime is 5128766659. The next prime is 5128766749. The reversal of 5128766725 is 5276678215.

It is a happy number.

It is not a de Polignac number, because 5128766725 - 2⁹ = 5128766213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158476 + ... + 188074.

It is an arithmetic number, because the mean of its divisors is an integer number (275280000).

Almost surely, 2^5128766725 is an apocalyptic number.

It is an amenable number.

5128766725 is a deficient number, since it is larger than the sum of its proper divisors (1477953275).

5128766725 is a wasteful number, since it uses less digits than its factorization.

5128766725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29877 (or 29872 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The square root of 5128766725 is about 71615.4084328226. The cubic root of 5128766725 is about 1724.5309065436.

The spelling of 5128766725 in words is "five billion, one hundred twenty-eight million, seven hundred sixty-six thousand, seven hundred twenty-five".