8887139154 has 96 divisors (see below), whose sum is σ = 21140196480. Its totient is φ = 2766506400.

The previous prime is 8887139141. The next prime is 8887139161. The reversal of 8887139154 is 4519317888.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8887139154.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1380864 + ... + 1387284.

It is an arithmetic number, because the mean of its divisors is an integer number (220210380).

Almost surely, 2^8887139154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8887139154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10570098240).

8887139154 is an abundant number, since it is smaller than the sum of its proper divisors (12253057326).

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

8887139154 is a wasteful number, since it uses less digits than its factorization.

8887139154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6541 (or 6516 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 8887139154 is about 94271.6243309725. The cubic root of 8887139154 is about 2071.3524075551.

The spelling of 8887139154 in words is "eight billion, eight hundred eighty-seven million, one hundred thirty-nine thousand, one hundred fifty-four".