11779461771 has 48 divisors (see below), whose sum is σ = 20042951040. Its totient is φ = 6084865920.

The previous prime is 11779461751. The next prime is 11779461781. The reversal of 11779461771 is 17716497711.

11779461771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11779461771 - 2⁷ = 11779461643 is a prime.

It is a super-2 number, since 2×11779461771² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11779461751) 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 47 ways as a sum of consecutive naturals, for example, 269095 + ... + 309791.

It is an arithmetic number, because the mean of its divisors is an integer number (417561480).

Almost surely, 2^11779461771 is an apocalyptic number.

11779461771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11779461771 is a deficient number, since it is larger than the sum of its proper divisors (8263489269).

11779461771 is a wasteful number, since it uses less digits than its factorization.

11779461771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40904 (or 40897 counting only the distinct ones).

The product of its digits is 518616, while the sum is 51.

The spelling of 11779461771 in words is "eleven billion, seven hundred seventy-nine million, four hundred sixty-one thousand, seven hundred seventy-one".