8278694625 has 16 divisors (see below), whose sum is σ = 13775748480. Its totient is φ = 4415303600.

The previous prime is 8278694587. The next prime is 8278694653. The reversal of 8278694625 is 5264968728.

It is a happy number.

It is not a de Polignac number, because 8278694625 - 2¹⁰ = 8278693601 is a prime.

It is a super-3 number, since 3×8278694625³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11037885 + ... + 11038634.

It is an arithmetic number, because the mean of its divisors is an integer number (860984280).

Almost surely, 2^8278694625 is an apocalyptic number.

It is an amenable number.

8278694625 is a deficient number, since it is larger than the sum of its proper divisors (5497053855).

8278694625 is a wasteful number, since it uses less digits than its factorization.

8278694625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22076537 (or 22076527 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The square root of 8278694625 is about 90987.3322226781. The cubic root of 8278694625 is about 2022.9599634905.

The spelling of 8278694625 in words is "eight billion, two hundred seventy-eight million, six hundred ninety-four thousand, six hundred twenty-five".