13773263891 has 4 divisors (see below), whose sum is σ = 13821932952. Its totient is φ = 13724594832.

The previous prime is 13773263873. The next prime is 13773263897. The reversal of 13773263891 is 19836237731.

13773263891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19836237731 = 1399 ⋅14178869.

It is a cyclic number.

It is not a de Polignac number, because 13773263891 - 2³⁰ = 12699522067 is a prime.

It is a super-2 number, since 2×13773263891² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13773263897) 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 3 ways as a sum of consecutive naturals, for example, 24334106 + ... + 24334671.

It is an arithmetic number, because the mean of its divisors is an integer number (3455483238).

Almost surely, 2^13773263891 is an apocalyptic number.

13773263891 is a deficient number, since it is larger than the sum of its proper divisors (48669061).

13773263891 is an equidigital number, since it uses as much as digits as its factorization.

13773263891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48669060.

The product of its digits is 1143072, while the sum is 50.

The spelling of 13773263891 in words is "thirteen billion, seven hundred seventy-three million, two hundred sixty-three thousand, eight hundred ninety-one".