7128133485725 has 24 divisors (see below), whose sum is σ = 10101957094080. Its totient is φ = 4887682168320.

The previous prime is 7128133485713. The next prime is 7128133485751. The reversal of 7128133485725 is 5275843318217.

It is a happy number.

It is not a de Polignac number, because 7128133485725 - 2⁴ = 7128133485709 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, 4079789 + ... + 5558861.

It is an arithmetic number, because the mean of its divisors is an integer number (420914878920).

Almost surely, 2^{7128133485725} is an apocalyptic number.

It is an amenable number.

7128133485725 is a deficient number, since it is larger than the sum of its proper divisors (2973823608355).

7128133485725 is a wasteful number, since it uses less digits than its factorization.

7128133485725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506629 (or 1506624 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 56.

The spelling of 7128133485725 in words is "seven trillion, one hundred twenty-eight billion, one hundred thirty-three million, four hundred eighty-five thousand, seven hundred twenty-five".