11771112770 has 32 divisors (see below), whose sum is σ = 21273969600. Its totient is φ = 4689380416.

The previous prime is 11771112763. The next prime is 11771112779. The reversal of 11771112770 is 7721117711.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11771112770.

It is not an unprimeable number, because it can be changed into a prime (11771112779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3215201 + ... + 3218859.

It is an arithmetic number, because the mean of its divisors is an integer number (664811550).

Almost surely, 2^11771112770 is an apocalyptic number.

11771112770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11771112770 is a deficient number, since it is larger than the sum of its proper divisors (9502856830).

11771112770 is a wasteful number, since it uses less digits than its factorization.

11771112770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882.

The product of its (nonzero) digits is 4802, while the sum is 35.

The spelling of 11771112770 in words is "eleven billion, seven hundred seventy-one million, one hundred twelve thousand, seven hundred seventy".