11885880813 has 16 divisors (see below), whose sum is σ = 16212994560. Its totient is φ = 7742953136.

The previous prime is 11885880793. The next prime is 11885880817. The reversal of 11885880813 is 31808858811.

11885880813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11885880813 - 2⁵ = 11885880781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11885880817) 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 15 ways as a sum of consecutive naturals, for example, 171495 + ... + 230612.

It is an arithmetic number, because the mean of its divisors is an integer number (1013312160).

Almost surely, 2^11885880813 is an apocalyptic number.

It is an amenable number.

11885880813 is a deficient number, since it is larger than the sum of its proper divisors (4327113747).

11885880813 is a wasteful number, since it uses less digits than its factorization.

11885880813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402336.

The product of its (nonzero) digits is 491520, while the sum is 51.

The spelling of 11885880813 in words is "eleven billion, eight hundred eighty-five million, eight hundred eighty thousand, eight hundred thirteen".