8457481256 has 32 divisors (see below), whose sum is σ = 18707796480. Its totient is φ = 3507710400.

The previous prime is 8457481247. The next prime is 8457481259. The reversal of 8457481256 is 6521847548.

It is not an unprimeable number, because it can be changed into a prime (8457481259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2434175 + ... + 2437646.

It is an arithmetic number, because the mean of its divisors is an integer number (584618640).

Almost surely, 2^8457481256 is an apocalyptic number.

It is an amenable number.

8457481256 is an abundant number, since it is smaller than the sum of its proper divisors (10250315224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8457481256 is a wasteful number, since it uses less digits than its factorization.

8457481256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871865 (or 4871861 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 50.

The square root of 8457481256 is about 91964.5652194366. The cubic root of 8457481256 is about 2037.4189817911.

The spelling of 8457481256 in words is "eight billion, four hundred fifty-seven million, four hundred eighty-one thousand, two hundred fifty-six".