22813276993 has 4 divisors (see below), whose sum is σ = 24568144468. Its totient is φ = 21058409520.

The previous prime is 22813276987. The next prime is 22813277009. The reversal of 22813276993 is 39967231822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7799185969 + 15014091024 = 88313^2 + 122532^2 .

It is a cyclic number.

It is not a de Polignac number, because 22813276993 - 2⁹ = 22813276481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22813276993.

It is not an unprimeable number, because it can be changed into a prime (22813276933) 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, 877433718 + ... + 877433743.

It is an arithmetic number, because the mean of its divisors is an integer number (6142036117).

Almost surely, 2^22813276993 is an apocalyptic number.

It is an amenable number.

22813276993 is a deficient number, since it is larger than the sum of its proper divisors (1754867475).

22813276993 is a wasteful number, since it uses less digits than its factorization.

22813276993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754867474.

The product of its digits is 1959552, while the sum is 52.

The spelling of 22813276993 in words is "twenty-two billion, eight hundred thirteen million, two hundred seventy-six thousand, nine hundred ninety-three".