12544989128990 has 64 divisors (see below), whose sum is σ = 22722515399232. Its totient is φ = 4986661785600.

The previous prime is 12544989128981. The next prime is 12544989128999. The reversal of 12544989128990 is 9982198944521.

It is an interprime number because it is at equal distance from previous prime (12544989128981) and next prime (12544989128999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544989128999) 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, 2384522960 + ... + 2384528220.

It is an arithmetic number, because the mean of its divisors is an integer number (355039303113).

Almost surely, 2^{12544989128990} is an apocalyptic number.

12544989128990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12544989128990 is a deficient number, since it is larger than the sum of its proper divisors (10177526270242).

12544989128990 is a wasteful number, since it uses less digits than its factorization.

12544989128990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805.

The product of its (nonzero) digits is 134369280, while the sum is 71.

The spelling of 12544989128990 in words is "twelve trillion, five hundred forty-four billion, nine hundred eighty-nine million, one hundred twenty-eight thousand, nine hundred ninety".