22773506233 has 4 divisors (see below), whose sum is σ = 22774848768. Its totient is φ = 22772163700.

The previous prime is 22773506227. The next prime is 22773506257. The reversal of 22773506233 is 33260537722.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33260537722 = 2 ⋅16630268861.

It is a cyclic number.

It is not a de Polignac number, because 22773506233 - 2⁵ = 22773506201 is a prime.

It is a super-2 number, since 2×22773506233² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22773506213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645493 + ... + 679858.

It is an arithmetic number, because the mean of its divisors is an integer number (5693712192).

Almost surely, 2^22773506233 is an apocalyptic number.

It is an amenable number.

22773506233 is a deficient number, since it is larger than the sum of its proper divisors (1342535).

22773506233 is a wasteful number, since it uses less digits than its factorization.

22773506233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342534.

The product of its (nonzero) digits is 317520, while the sum is 40.

The spelling of 22773506233 in words is "twenty-two billion, seven hundred seventy-three million, five hundred six thousand, two hundred thirty-three".