8456527138 has 16 divisors (see below), whose sum is σ = 13102421760. Its totient is φ = 4089229200.

The previous prime is 8456527117. The next prime is 8456527147. The reversal of 8456527138 is 8317256548.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8456527091 and 8456527100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54708 + ... + 141088.

It is an arithmetic number, because the mean of its divisors is an integer number (818901360).

Almost surely, 2^8456527138 is an apocalyptic number.

8456527138 is a deficient number, since it is larger than the sum of its proper divisors (4645894622).

8456527138 is a wasteful number, since it uses less digits than its factorization.

8456527138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87993.

The product of its digits is 1612800, while the sum is 49.

The square root of 8456527138 is about 91959.3776512216. The cubic root of 8456527138 is about 2037.3423627926.

The spelling of 8456527138 in words is "eight billion, four hundred fifty-six million, five hundred twenty-seven thousand, one hundred thirty-eight".