13428783911 has 4 divisors (see below), whose sum is σ = 13474616232. Its totient is φ = 13382951592.

The previous prime is 13428783889. The next prime is 13428783923. The reversal of 13428783911 is 11938782431.

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 13428783911 - 2⁶ = 13428783847 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 (13428783971) 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, 22915721 + ... + 22916306.

It is an arithmetic number, because the mean of its divisors is an integer number (3368654058).

Almost surely, 2^13428783911 is an apocalyptic number.

13428783911 is a deficient number, since it is larger than the sum of its proper divisors (45832321).

13428783911 is an equidigital number, since it uses as much as digits as its factorization.

13428783911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45832320.

The product of its digits is 290304, while the sum is 47.

The spelling of 13428783911 in words is "thirteen billion, four hundred twenty-eight million, seven hundred eighty-three thousand, nine hundred eleven".