22291685993 has 4 divisors (see below), whose sum is σ = 22292852880. Its totient is φ = 22290519108.

The previous prime is 22291685987. The next prime is 22291686007. The reversal of 22291685993 is 39958619222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22291685993 - 2¹² = 22291681897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22291685093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554303 + ... + 593156.

It is an arithmetic number, because the mean of its divisors is an integer number (5573213220).

Almost surely, 2^22291685993 is an apocalyptic number.

It is an amenable number.

22291685993 is a deficient number, since it is larger than the sum of its proper divisors (1166887).

22291685993 is a wasteful number, since it uses less digits than its factorization.

22291685993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166886.

The product of its digits is 4199040, while the sum is 56.

The spelling of 22291685993 in words is "twenty-two billion, two hundred ninety-one million, six hundred eighty-five thousand, nine hundred ninety-three".