21917110699 has 8 divisors (see below), whose sum is σ = 24212229120. Its totient is φ = 19672434600.

The previous prime is 21917110613. The next prime is 21917110751. The reversal of 21917110699 is 99601171912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21917110699 - 2⁷ = 21917110571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21917114699) 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 7 ways as a sum of consecutive naturals, for example, 12609667 + ... + 12611404.

It is an arithmetic number, because the mean of its divisors is an integer number (3026528640).

Almost surely, 2^21917110699 is an apocalyptic number.

21917110699 is a deficient number, since it is larger than the sum of its proper divisors (2295118421).

21917110699 is a wasteful number, since it uses less digits than its factorization.

21917110699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25221161.

The product of its (nonzero) digits is 61236, while the sum is 46.

The spelling of 21917110699 in words is "twenty-one billion, nine hundred seventeen million, one hundred ten thousand, six hundred ninety-nine".