7686724025 has 12 divisors (see below), whose sum is σ = 9532660332. Its totient is φ = 6148655040.

The previous prime is 7686723991. The next prime is 7686724033. The reversal of 7686724025 is 5204276867.

It can be written as a sum of positive squares in 6 ways, for example, as 1247784976 + 6438939049 = 35324^2 + 80243^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7686724025 is a prime.

It is a Duffinian number.

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, 328619 + ... + 351231.

It is an arithmetic number, because the mean of its divisors is an integer number (794388361).

Almost surely, 2^7686724025 is an apocalyptic number.

It is an amenable number.

7686724025 is a deficient number, since it is larger than the sum of its proper divisors (1845936307).

7686724025 is a wasteful number, since it uses less digits than its factorization.

7686724025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36220 (or 36215 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 7686724025 is about 87673.9643508836. The cubic root of 7686724025 is about 1973.5452856598.

The spelling of 7686724025 in words is "seven billion, six hundred eighty-six million, seven hundred twenty-four thousand, twenty-five".