12115007886 has 64 divisors (see below), whose sum is σ = 26442823680. Its totient is φ = 3686238720.

The previous prime is 12115007837. The next prime is 12115007887. The reversal of 12115007886 is 68870051121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115007887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816066 + ... + 830778.

It is an arithmetic number, because the mean of its divisors is an integer number (413169120).

Almost surely, 2^12115007886 is an apocalyptic number.

12115007886 is an abundant number, since it is smaller than the sum of its proper divisors (14327815794).

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

12115007886 is a wasteful number, since it uses less digits than its factorization.

12115007886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001.

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 12115007886 in words is "twelve billion, one hundred fifteen million, seven thousand, eight hundred eighty-six".