13606147949 has 4 divisors (see below), whose sum is σ = 13606381536. Its totient is φ = 13605914364.

The previous prime is 13606147939. The next prime is 13606147979. The reversal of 13606147949 is 94974160631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13606147949 - 2²⁰ = 13605099373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13606147897 and 13606147906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13606147909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49592 + ... + 172254.

It is an arithmetic number, because the mean of its divisors is an integer number (3401595384).

Almost surely, 2^13606147949 is an apocalyptic number.

It is an amenable number.

13606147949 is a deficient number, since it is larger than the sum of its proper divisors (233587).

13606147949 is a wasteful number, since it uses less digits than its factorization.

13606147949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233586.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 13606147949 in words is "thirteen billion, six hundred six million, one hundred forty-seven thousand, nine hundred forty-nine".