13889067840 has 224 divisors, whose sum is σ = 49730924160. Its totient is φ = 3648319488.

The previous prime is 13889067793. The next prime is 13889067851. The reversal of 13889067840 is 4876098831.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 566884 + ... + 590876.

Almost surely, 2^13889067840 is an apocalyptic number.

13889067840 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 13889067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24865462080).

13889067840 is an abundant number, since it is smaller than the sum of its proper divisors (35841856320).

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

13889067840 is a wasteful number, since it uses less digits than its factorization.

13889067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086 (or 24070 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 13889067840 in words is "thirteen billion, eight hundred eighty-nine million, sixty-seven thousand, eight hundred forty".