13785381149 has 8 divisors (see below), whose sum is σ = 13825455840. Its totient is φ = 13745341456.

The previous prime is 13785381139. The next prime is 13785381151. The reversal of 13785381149 is 94118358731.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13785381149 - 2⁸ = 13785380893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13785381097 and 13785381106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13785381139) 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, 919814 + ... + 934680.

It is an arithmetic number, because the mean of its divisors is an integer number (1728181980).

Almost surely, 2^13785381149 is an apocalyptic number.

It is an amenable number.

13785381149 is a deficient number, since it is larger than the sum of its proper divisors (40074691).

13785381149 is a wasteful number, since it uses less digits than its factorization.

13785381149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17499.

The product of its digits is 725760, while the sum is 50.

The spelling of 13785381149 in words is "thirteen billion, seven hundred eighty-five million, three hundred eighty-one thousand, one hundred forty-nine".