13489923747 has 6 divisors (see below), whose sum is σ = 17986833228. Its totient is φ = 8993148384.

The previous prime is 13489923709. The next prime is 13489923787. The reversal of 13489923747 is 74732998431.

It is a happy number.

13489923747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13489923747 - 2¹⁶ = 13489858211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13489923787) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 167643 + ... + 234699.

It is an arithmetic number, because the mean of its divisors is an integer number (2997805538).

Almost surely, 2^13489923747 is an apocalyptic number.

13489923747 is a deficient number, since it is larger than the sum of its proper divisors (4496909481).

13489923747 is an frugal number, since it uses more digits than its factorization.

13489923747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134117 (or 67060 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The spelling of 13489923747 in words is "thirteen billion, four hundred eighty-nine million, nine hundred twenty-three thousand, seven hundred forty-seven".