13993549783 has 4 divisors (see below), whose sum is σ = 14074437528. Its totient is φ = 13912662040.

The previous prime is 13993549769. The next prime is 13993549789. The reversal of 13993549783 is 38794539931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13993549783 - 2²⁵ = 13959995351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13993549789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40443613 + ... + 40443958.

It is an arithmetic number, because the mean of its divisors is an integer number (3518609382).

Almost surely, 2^13993549783 is an apocalyptic number.

13993549783 is a deficient number, since it is larger than the sum of its proper divisors (80887745).

13993549783 is an equidigital number, since it uses as much as digits as its factorization.

13993549783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80887744.

The product of its digits is 22044960, while the sum is 61.

The spelling of 13993549783 in words is "thirteen billion, nine hundred ninety-three million, five hundred forty-nine thousand, seven hundred eighty-three".