7728875253 has 96 divisors (see below), whose sum is σ = 12986168832. Its totient is φ = 4554014400.

The previous prime is 7728875251. The next prime is 7728875321. The reversal of 7728875253 is 3525788277.

It is not a de Polignac number, because 7728875253 - 2¹ = 7728875251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7728875253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7728875251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17446450 + ... + 17446892.

It is an arithmetic number, because the mean of its divisors is an integer number (135272592).

Almost surely, 2^7728875253 is an apocalyptic number.

It is an amenable number.

7728875253 is a deficient number, since it is larger than the sum of its proper divisors (5257293579).

7728875253 is a wasteful number, since it uses less digits than its factorization.

7728875253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 625 counting only the distinct ones).

The product of its digits is 6585600, while the sum is 54.

The square root of 7728875253 is about 87914.0219362077. The cubic root of 7728875253 is about 1977.1461157869.

The spelling of 7728875253 in words is "seven billion, seven hundred twenty-eight million, eight hundred seventy-five thousand, two hundred fifty-three".