13820238743 has 16 divisors (see below), whose sum is σ = 14662450176. Its totient is φ = 13005558720.

The previous prime is 13820238737. The next prime is 13820238763. The reversal of 13820238743 is 34783202831.

It is a cyclic number.

It is not a de Polignac number, because 13820238743 - 2⁴ = 13820238727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13820238743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13820238763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279755 + ... + 325427.

It is an arithmetic number, because the mean of its divisors is an integer number (916403136).

Almost surely, 2^13820238743 is an apocalyptic number.

13820238743 is a deficient number, since it is larger than the sum of its proper divisors (842211433).

13820238743 is a wasteful number, since it uses less digits than its factorization.

13820238743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45974.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 13820238743 in words is "thirteen billion, eight hundred twenty million, two hundred thirty-eight thousand, seven hundred forty-three".