2119442909866 has 16 divisors (see below), whose sum is σ = 3210926779008. Its totient is φ = 1049135850000.

The previous prime is 2119442909863. The next prime is 2119442909867. The reversal of 2119442909866 is 6689092449112.

It is not an unprimeable number, because it can be changed into a prime (2119442909861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838491 + ... + 2760241.

It is an arithmetic number, because the mean of its divisors is an integer number (200682923688).

Almost surely, 2^{2119442909866} is an apocalyptic number.

2119442909866 is a deficient number, since it is larger than the sum of its proper divisors (1091483869142).

2119442909866 is a wasteful number, since it uses less digits than its factorization.

2119442909866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933237.

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 2119442909866 in words is "two trillion, one hundred nineteen billion, four hundred forty-two million, nine hundred nine thousand, eight hundred sixty-six".