21936095999 has 2 divisors, whose sum is σ = 21936096000. Its totient is φ = 21936095998.

The previous prime is 21936095957. The next prime is 21936096059. The reversal of 21936095999 is 99959063912.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21936095999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21936095399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10968047999 + 10968048000.

It is an arithmetic number, because the mean of its divisors is an integer number (10968048000).

Almost surely, 2^21936095999 is an apocalyptic number.

21936095999 is a deficient number, since it is larger than the sum of its proper divisors (1).

21936095999 is an equidigital number, since it uses as much as digits as its factorization.

21936095999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10628820, while the sum is 62.

The spelling of 21936095999 in words is "twenty-one billion, nine hundred thirty-six million, ninety-five thousand, nine hundred ninety-nine".