13883949849 has 16 divisors (see below), whose sum is σ = 23079813120. Its totient is φ = 7212441360.

The previous prime is 13883949847. The next prime is 13883949853. The reversal of 13883949849 is 94894938831.

It is not a de Polignac number, because 13883949849 - 2¹ = 13883949847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13883949849.

It is not an unprimeable number, because it can be changed into a prime (13883949841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30051609 + ... + 30052070.

It is an arithmetic number, because the mean of its divisors is an integer number (1442488320).

Almost surely, 2^13883949849 is an apocalyptic number.

It is an amenable number.

13883949849 is a deficient number, since it is larger than the sum of its proper divisors (9195863271).

13883949849 is a wasteful number, since it uses less digits than its factorization.

13883949849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60103700.

The product of its digits is 53747712, while the sum is 66.

The spelling of 13883949849 in words is "thirteen billion, eight hundred eighty-three million, nine hundred forty-nine thousand, eight hundred forty-nine".