13394989993 has 32 divisors (see below), whose sum is σ = 17221478400. Its totient is φ = 10115280000.

The previous prime is 13394989991. The next prime is 13394990029. The reversal of 13394989993 is 39998949331.

It is not a de Polignac number, because 13394989993 - 2¹ = 13394989991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13394989991) 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 31 ways as a sum of consecutive naturals, for example, 462658 + ... + 490756.

It is an arithmetic number, because the mean of its divisors is an integer number (538171200).

Almost surely, 2^13394989993 is an apocalyptic number.

It is an amenable number.

13394989993 is a deficient number, since it is larger than the sum of its proper divisors (3826488407).

13394989993 is a wasteful number, since it uses less digits than its factorization.

13394989993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28309.

The product of its digits is 51018336, while the sum is 67.

The spelling of 13394989993 in words is "thirteen billion, three hundred ninety-four million, nine hundred eighty-nine thousand, nine hundred ninety-three".