8381488725 has 36 divisors (see below), whose sum is σ = 15027154272. Its totient is φ = 4465668000.

The previous prime is 8381488721. The next prime is 8381488777. The reversal of 8381488725 is 5278841838.

8381488725 is a `hidden beast` number, since 83 + 81 + 488 + 7 + 2 + 5 = 666.

It is not a de Polignac number, because 8381488725 - 2² = 8381488721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8381488721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 213910 + ... + 250040.

It is an arithmetic number, because the mean of its divisors is an integer number (417420952).

Almost surely, 2^8381488725 is an apocalyptic number.

It is an amenable number.

8381488725 is a deficient number, since it is larger than the sum of its proper divisors (6645665547).

8381488725 is a wasteful number, since it uses less digits than its factorization.

8381488725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37178 (or 37170 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The square root of 8381488725 is about 91550.4709163203. The cubic root of 8381488725 is about 2031.2983778931.

The spelling of 8381488725 in words is "eight billion, three hundred eighty-one million, four hundred eighty-eight thousand, seven hundred twenty-five".