13228919774 has 16 divisors (see below), whose sum is σ = 22700169216. Its totient is φ = 5664031800.

The previous prime is 13228919713. The next prime is 13228919779. The reversal of 13228919774 is 47791982231.

It is a super-2 number, since 2×13228919774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228919779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443822 + ... + 472689.

It is an arithmetic number, because the mean of its divisors is an integer number (1418760576).

Almost surely, 2^13228919774 is an apocalyptic number.

13228919774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13228919774 is a deficient number, since it is larger than the sum of its proper divisors (9471249442).

13228919774 is a wasteful number, since it uses less digits than its factorization.

13228919774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917551.

The product of its digits is 1524096, while the sum is 53.

The spelling of 13228919774 in words is "thirteen billion, two hundred twenty-eight million, nine hundred nineteen thousand, seven hundred seventy-four".