11387445163 has 4 divisors (see below), whose sum is σ = 11488219128. Its totient is φ = 11286671200.

The previous prime is 11387445151. The next prime is 11387445191. The reversal of 11387445163 is 36154478311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11387445163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11387445133) 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, 50386813 + ... + 50387038.

It is an arithmetic number, because the mean of its divisors is an integer number (2872054782).

Almost surely, 2^11387445163 is an apocalyptic number.

11387445163 is a deficient number, since it is larger than the sum of its proper divisors (100773965).

11387445163 is a wasteful number, since it uses less digits than its factorization.

11387445163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100773964.

The product of its digits is 241920, while the sum is 43.

The spelling of 11387445163 in words is "eleven billion, three hundred eighty-seven million, four hundred forty-five thousand, one hundred sixty-three".