13890554680 has 64 divisors (see below), whose sum is σ = 32634109440. Its totient is φ = 5311143552.

The previous prime is 13890554669. The next prime is 13890554681. The reversal of 13890554680 is 8645509831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890554681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1713597 + ... + 1721683.

It is an arithmetic number, because the mean of its divisors is an integer number (509907960).

Almost surely, 2^13890554680 is an apocalyptic number.

13890554680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13890554680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16317054720).

13890554680 is an abundant number, since it is smaller than the sum of its proper divisors (18743554760).

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

13890554680 is a wasteful number, since it uses less digits than its factorization.

13890554680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9988 (or 9984 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 13890554680 in words is "thirteen billion, eight hundred ninety million, five hundred fifty-four thousand, six hundred eighty".