11849909863 has 4 divisors (see below), whose sum is σ = 12927174408. Its totient is φ = 10772645320.

The previous prime is 11849909761. The next prime is 11849909893. The reversal of 11849909863 is 36890994811.

11849909863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11849909863 is a prime.

It is a super-2 number, since 2×11849909863² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11849909798 and 11849909807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11849909893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538632256 + ... + 538632277.

It is an arithmetic number, because the mean of its divisors is an integer number (3231793602).

Almost surely, 2^11849909863 is an apocalyptic number.

11849909863 is a deficient number, since it is larger than the sum of its proper divisors (1077264545).

11849909863 is a wasteful number, since it uses less digits than its factorization.

11849909863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077264544.

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 11849909863 in words is "eleven billion, eight hundred forty-nine million, nine hundred nine thousand, eight hundred sixty-three".