13890291764 has 12 divisors (see below), whose sum is σ = 24900889188. Its totient is φ = 6775752000.

The previous prime is 13890291743. The next prime is 13890291797. The reversal of 13890291764 is 46719209831.

13890291764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 736036900 + 13154254864 = 27130^2 + 114692^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42348287 + ... + 42348614.

It is an arithmetic number, because the mean of its divisors is an integer number (2075074099).

Almost surely, 2^13890291764 is an apocalyptic number.

It is an amenable number.

13890291764 is a deficient number, since it is larger than the sum of its proper divisors (11010597424).

13890291764 is a wasteful number, since it uses less digits than its factorization.

13890291764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84696946 (or 84696944 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 13890291764 in words is "thirteen billion, eight hundred ninety million, two hundred ninety-one thousand, seven hundred sixty-four".