8168653725 has 48 divisors (see below), whose sum is σ = 14013978048. Its totient is φ = 4195031040.

The previous prime is 8168653699. The next prime is 8168653769. The reversal of 8168653725 is 5273568618.

It is a happy number.

It is not a de Polignac number, because 8168653725 - 2⁸ = 8168653469 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254002 + ... + 284348.

It is an arithmetic number, because the mean of its divisors is an integer number (291957876).

Almost surely, 2^8168653725 is an apocalyptic number.

It is an amenable number.

8168653725 is a deficient number, since it is larger than the sum of its proper divisors (5845324323).

8168653725 is a wasteful number, since it uses less digits than its factorization.

8168653725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30494 (or 30489 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 8168653725 is about 90380.6048054559. The cubic root of 8168653725 is about 2013.9568536425.

The spelling of 8168653725 in words is "eight billion, one hundred sixty-eight million, six hundred fifty-three thousand, seven hundred twenty-five".