15336440390784 has 128 divisors (see below), whose sum is σ = 42318492768000. Its totient is φ = 4915212861440.

The previous prime is 15336440390767. The next prime is 15336440390837. The reversal of 15336440390784 is 48709304463351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219657 + ... + 5542664.

It is an arithmetic number, because the mean of its divisors is an integer number (330613224750).

Almost surely, 2^{15336440390784} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15336440390784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21159246384000).

15336440390784 is an abundant number, since it is smaller than the sum of its proper divisors (26982052377216).

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

15336440390784 is a wasteful number, since it uses less digits than its factorization.

15336440390784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762606 (or 5762594 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 57.

The spelling of 15336440390784 in words is "fifteen trillion, three hundred thirty-six billion, four hundred forty million, three hundred ninety thousand, seven hundred eighty-four".