11766642894 has 48 divisors (see below), whose sum is σ = 26180607024. Its totient is φ = 3817296000.

The previous prime is 11766642893. The next prime is 11766642911. The reversal of 11766642894 is 49824666711.

It is a self number, because there is not a number n which added to its sum of digits gives 11766642894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11766642893) 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 23 ways as a sum of consecutive naturals, for example, 190444 + ... + 244544.

It is an arithmetic number, because the mean of its divisors is an integer number (545429313).

Almost surely, 2^11766642894 is an apocalyptic number.

11766642894 is an abundant number, since it is smaller than the sum of its proper divisors (14413964130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11766642894 is a wasteful number, since it uses less digits than its factorization.

11766642894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54433 (or 54430 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 11766642894 in words is "eleven billion, seven hundred sixty-six million, six hundred forty-two thousand, eight hundred ninety-four".