889139102015 has 32 divisors (see below), whose sum is σ = 1116782614080. Its totient is φ = 678700560384.

The previous prime is 889139102009. The next prime is 889139102041. The reversal of 889139102015 is 510201931988.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 889139102015 - 2⁸ = 889139101759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9560117 + ... + 9652673.

It is an arithmetic number, because the mean of its divisors is an integer number (34899456690).

Almost surely, 2^889139102015 is an apocalyptic number.

889139102015 is a deficient number, since it is larger than the sum of its proper divisors (227643512065).

889139102015 is a wasteful number, since it uses less digits than its factorization.

889139102015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93371.

The product of its (nonzero) digits is 155520, while the sum is 47.

The spelling of 889139102015 in words is "eight hundred eighty-nine billion, one hundred thirty-nine million, one hundred two thousand, fifteen".