13401537889 has 4 divisors (see below), whose sum is σ = 13416249600. Its totient is φ = 13386826180.

The previous prime is 13401537883. The next prime is 13401537893. The reversal of 13401537889 is 98873510431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13401537889 - 2¹⁷ = 13401406817 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13401537883) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7354489 + ... + 7356310.

It is an arithmetic number, because the mean of its divisors is an integer number (3354062400).

Almost surely, 2^13401537889 is an apocalyptic number.

It is an amenable number.

13401537889 is a deficient number, since it is larger than the sum of its proper divisors (14711711).

13401537889 is an equidigital number, since it uses as much as digits as its factorization.

13401537889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14711710.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 13401537889 in words is "thirteen billion, four hundred one million, five hundred thirty-seven thousand, eight hundred eighty-nine".