8686861925 has 12 divisors (see below), whose sum is σ = 12310524576. Its totient is φ = 5956705200.

The previous prime is 8686861919. The next prime is 8686861969. The reversal of 8686861925 is 5291686868.

It is not a de Polignac number, because 8686861925 - 2⁸ = 8686861669 is a prime.

It is a congruent 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, 24819431 + ... + 24819780.

It is an arithmetic number, because the mean of its divisors is an integer number (1025877048).

Almost surely, 2^8686861925 is an apocalyptic number.

It is an amenable number.

8686861925 is a deficient number, since it is larger than the sum of its proper divisors (3623662651).

8686861925 is a wasteful number, since it uses less digits than its factorization.

8686861925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49639228 (or 49639223 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 59.

The square root of 8686861925 is about 93203.3364477903. The cubic root of 8686861925 is about 2055.6742991572.

The spelling of 8686861925 in words is "eight billion, six hundred eighty-six million, eight hundred sixty-one thousand, nine hundred twenty-five".