11573982849 has 16 divisors (see below), whose sum is σ = 18129875904. Its totient is φ = 6474955200.

The previous prime is 11573982841. The next prime is 11573982887. The reversal of 11573982849 is 94828937511.

It is not a de Polignac number, because 11573982849 - 2³ = 11573982841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11573982841) 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, 13489062 + ... + 13489919.

It is an arithmetic number, because the mean of its divisors is an integer number (1133117244).

Almost surely, 2^11573982849 is an apocalyptic number.

It is an amenable number.

11573982849 is a deficient number, since it is larger than the sum of its proper divisors (6555893055).

11573982849 is a wasteful number, since it uses less digits than its factorization.

11573982849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26979008.

The product of its digits is 4354560, while the sum is 57.

The spelling of 11573982849 in words is "eleven billion, five hundred seventy-three million, nine hundred eighty-two thousand, eight hundred forty-nine".