13889266780 has 24 divisors (see below), whose sum is σ = 29294838720. Its totient is φ = 5531444160.

The previous prime is 13889266777. The next prime is 13889266789. The reversal of 13889266780 is 8766298831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889266789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511716 + ... + 1520875.

It is an arithmetic number, because the mean of its divisors is an integer number (1220618280).

Almost surely, 2^13889266780 is an apocalyptic number.

13889266780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13889266780 is an abundant number, since it is smaller than the sum of its proper divisors (15405571940).

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

13889266780 is a wasteful number, since it uses less digits than its factorization.

13889266780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032829 (or 3032827 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 13889266780 in words is "thirteen billion, eight hundred eighty-nine million, two hundred sixty-six thousand, seven hundred eighty".