13818901440 has 112 divisors (see below), whose sum is σ = 44057803680. Its totient is φ = 3669688320.

The previous prime is 13818901427. The next prime is 13818901463. The reversal of 13818901440 is 4410981831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201496 + ... + 261224.

Almost surely, 2^13818901440 is an apocalyptic number.

13818901440 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 13818901440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22028901840).

13818901440 is an abundant number, since it is smaller than the sum of its proper divisors (30238902240).

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

13818901440 is a wasteful number, since it uses less digits than its factorization.

13818901440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59990 (or 59980 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 13818901440 in words is "thirteen billion, eight hundred eighteen million, nine hundred one thousand, four hundred forty".