13644644214 has 16 divisors (see below), whose sum is σ = 27303666480. Its totient is φ = 4545818400.

The previous prime is 13644644207. The next prime is 13644644219. The reversal of 13644644214 is 41244644631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13644644219) 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, 586729 + ... + 609540.

It is an arithmetic number, because the mean of its divisors is an integer number (1706479155).

Almost surely, 2^13644644214 is an apocalyptic number.

13644644214 is an abundant number, since it is smaller than the sum of its proper divisors (13659022266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13644644214 is a wasteful number, since it uses less digits than its factorization.

13644644214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198175.

The product of its digits is 221184, while the sum is 39.

The spelling of 13644644214 in words is "thirteen billion, six hundred forty-four million, six hundred forty-four thousand, two hundred fourteen".