13662172249 has 8 divisors (see below), whose sum is σ = 14960860992. Its totient is φ = 12372929040.

The previous prime is 13662172211. The next prime is 13662172253. The reversal of 13662172249 is 94227126631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13662172249 is a prime.

It is a super-2 number, since 2×13662172249² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13662172259) 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, 2358354 + ... + 2364139.

It is an arithmetic number, because the mean of its divisors is an integer number (1870107624).

Almost surely, 2^13662172249 is an apocalyptic number.

It is an amenable number.

13662172249 is a deficient number, since it is larger than the sum of its proper divisors (1298688743).

13662172249 is a wasteful number, since it uses less digits than its factorization.

13662172249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722767.

The product of its digits is 217728, while the sum is 43.

The spelling of 13662172249 in words is "thirteen billion, six hundred sixty-two million, one hundred seventy-two thousand, two hundred forty-nine".