7728754025 has 12 divisors (see below), whose sum is σ = 9787564032. Its totient is φ = 6051449040.

The previous prime is 7728754021. The next prime is 7728754049. The reversal of 7728754025 is 5204578277.

It is not a de Polignac number, because 7728754025 - 2² = 7728754021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7728754021) 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 11 ways as a sum of consecutive naturals, for example, 3287657 + ... + 3290006.

It is an arithmetic number, because the mean of its divisors is an integer number (815630336).

Almost surely, 2^7728754025 is an apocalyptic number.

It is an amenable number.

7728754025 is a deficient number, since it is larger than the sum of its proper divisors (2058810007).

7728754025 is a wasteful number, since it uses less digits than its factorization.

7728754025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577720 (or 6577715 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 47.

The square root of 7728754025 is about 87913.3324644220. The cubic root of 7728754025 is about 1977.1357785034.

The spelling of 7728754025 in words is "seven billion, seven hundred twenty-eight million, seven hundred fifty-four thousand, twenty-five".