7766726225 has 12 divisors (see below), whose sum is σ = 9679142400. Its totient is φ = 6182154000.

The previous prime is 7766726213. The next prime is 7766726239. The reversal of 7766726225 is 5226276677.

7766726225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7766726225 - 2¹⁰ = 7766725201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 775601 + ... + 785550.

It is an arithmetic number, because the mean of its divisors is an integer number (806595200).

Almost surely, 2^7766726225 is an apocalyptic number.

It is an amenable number.

7766726225 is a deficient number, since it is larger than the sum of its proper divisors (1912416175).

7766726225 is a wasteful number, since it uses less digits than its factorization.

7766726225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561360 (or 1561355 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 50.

The square root of 7766726225 is about 88129.0316808258. The cubic root of 7766726225 is about 1980.3684503759.

The spelling of 7766726225 in words is "seven billion, seven hundred sixty-six million, seven hundred twenty-six thousand, two hundred twenty-five".