13224771949 has 8 divisors (see below), whose sum is σ = 13279097880. Its totient is φ = 13170484800.

The previous prime is 13224771929. The next prime is 13224771961. The reversal of 13224771949 is 94917742231.

It can be written as a sum of positive squares in 4 ways, for example, as 67076100 + 13157695849 = 8190^2 + 114707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13224771949 - 2¹³ = 13224763757 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 (13224771919) 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, 815379 + ... + 831439.

It is an arithmetic number, because the mean of its divisors is an integer number (1659887235).

Almost surely, 2^13224771949 is an apocalyptic number.

It is an amenable number.

13224771949 is a deficient number, since it is larger than the sum of its proper divisors (54325931).

13224771949 is a wasteful number, since it uses less digits than its factorization.

13224771949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19391.

The product of its digits is 762048, while the sum is 49.

The spelling of 13224771949 in words is "thirteen billion, two hundred twenty-four million, seven hundred seventy-one thousand, nine hundred forty-nine".