13748449743 has 36 divisors (see below), whose sum is σ = 23204895168. Its totient is φ = 7820971200.

The previous prime is 13748449739. The next prime is 13748449769. The reversal of 13748449743 is 34794484731.

It is a happy number.

13748449743 is a `hidden beast` number, since 1 + 3 + 74 + 84 + 497 + 4 + 3 = 666.

It is not a de Polignac number, because 13748449743 - 2² = 13748449739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13748449743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13748449243) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28443 + ... + 168243.

Almost surely, 2^13748449743 is an apocalyptic number.

13748449743 is a deficient number, since it is larger than the sum of its proper divisors (9456445425).

13748449743 is a wasteful number, since it uses less digits than its factorization.

13748449743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140044 (or 140034 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 13748449743 in words is "thirteen billion, seven hundred forty-eight million, four hundred forty-nine thousand, seven hundred forty-three".