13634521244 has 12 divisors (see below), whose sum is σ = 23878932000. Its totient is φ = 6811969248.

The previous prime is 13634521223. The next prime is 13634521253. The reversal of 13634521244 is 44212543631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317044 + ... + 1327355.

It is an arithmetic number, because the mean of its divisors is an integer number (1989911000).

Almost surely, 2^13634521244 is an apocalyptic number.

It is an amenable number.

13634521244 is a deficient number, since it is larger than the sum of its proper divisors (10244410756).

13634521244 is a wasteful number, since it uses less digits than its factorization.

13634521244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645692 (or 2645690 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The spelling of 13634521244 in words is "thirteen billion, six hundred thirty-four million, five hundred twenty-one thousand, two hundred forty-four".