13890036736 has 99 divisors (see below), whose sum is σ = 28985206809. Its totient is φ = 6652735488.

The previous prime is 13890036683. The next prime is 13890036761. The reversal of 13890036736 is 63763009831.

The square root of 13890036736 is 117856.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7283598336 + 6606438400 = 85344^2 + 81280^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 109370305 + ... + 109370431.

Almost surely, 2^13890036736 is an apocalyptic number.

13890036736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13890036736 is the 117856-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13890036736

13890036736 is an abundant number, since it is smaller than the sum of its proper divisors (15095170073).

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

13890036736 is an frugal number, since it uses more digits than its factorization.

13890036736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 13890036736 in words is "thirteen billion, eight hundred ninety million, thirty-six thousand, seven hundred thirty-six".