8317887138 has 32 divisors (see below), whose sum is σ = 20164576320. Its totient is φ = 2520571680.

The previous prime is 8317887131. The next prime is 8317887139.

8317887138 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8317887131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7000995 + ... + 7002182.

It is an arithmetic number, because the mean of its divisors is an integer number (630143010).

Almost surely, 2^8317887138 is an apocalyptic number.

8317887138 is an abundant number, since it is smaller than the sum of its proper divisors (11846689182).

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

8317887138 is a wasteful number, since it uses less digits than its factorization.

8317887138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14003199 (or 14003193 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 8317887138 is about 91202.4513815281. The cubic root of 8317887138 is about 2026.1472653938.

The spelling of 8317887138 in words is "eight billion, three hundred seventeen million, eight hundred eighty-seven thousand, one hundred thirty-eight".