21194262711799 has 16 divisors (see below), whose sum is σ = 21937888788480. Its totient is φ = 20454396677280.

The previous prime is 21194262711767. The next prime is 21194262711821. The reversal of 21194262711799 is 99711726249112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21194262711799 - 2⁵ = 21194262711767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21194262711719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95692624 + ... + 95913850.

It is an arithmetic number, because the mean of its divisors is an integer number (1371118049280).

Almost surely, 2^{21194262711799} is an apocalyptic number.

21194262711799 is a deficient number, since it is larger than the sum of its proper divisors (743626076681).

21194262711799 is a wasteful number, since it uses less digits than its factorization.

21194262711799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229710.

The product of its digits is 6858432, while the sum is 61.

The spelling of 21194262711799 in words is "twenty-one trillion, one hundred ninety-four billion, two hundred sixty-two million, seven hundred eleven thousand, seven hundred ninety-nine".