8465982138 has 40 divisors (see below), whose sum is σ = 19582020480. Its totient is φ = 2730960360.

The previous prime is 8465982137. The next prime is 8465982139. The reversal of 8465982138 is 8312895648.

8465982138 is a `hidden beast` number, since 8 + 46 + 598 + 2 + 1 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (8465982137) and next prime (8465982139).

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 (8465982131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 837868 + ... + 847911.

It is an arithmetic number, because the mean of its divisors is an integer number (489550512).

Almost surely, 2^8465982138 is an apocalyptic number.

8465982138 is an abundant number, since it is smaller than the sum of its proper divisors (11116038342).

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

8465982138 is a wasteful number, since it uses less digits than its factorization.

8465982138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685824 (or 1685815 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 8465982138 is about 92010.7718585167. The cubic root of 8465982138 is about 2038.1013779699.

The spelling of 8465982138 in words is "eight billion, four hundred sixty-five million, nine hundred eighty-two thousand, one hundred thirty-eight".