22918466993 has 2 divisors, whose sum is σ = 22918466994. Its totient is φ = 22918466992.

The previous prime is 22918466897. The next prime is 22918467007. The reversal of 22918466993 is 39966481922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22551629584 + 366837409 = 150172^2 + 19153^2 .

It is a cyclic number.

It is not a de Polignac number, because 22918466993 - 2²⁴ = 22901689777 is a prime.

It is a super-3 number, since 3×22918466993³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (22918466293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11459233496 + 11459233497.

It is an arithmetic number, because the mean of its divisors is an integer number (11459233497).

Almost surely, 2^22918466993 is an apocalyptic number.

It is an amenable number.

22918466993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22918466993 is an equidigital number, since it uses as much as digits as its factorization.

22918466993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 59.

The spelling of 22918466993 in words is "twenty-two billion, nine hundred eighteen million, four hundred sixty-six thousand, nine hundred ninety-three".