22343493481 has 2 divisors, whose sum is σ = 22343493482. Its totient is φ = 22343493480.

The previous prime is 22343493457. The next prime is 22343493539. The reversal of 22343493481 is 18439434322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15132936256 + 7210557225 = 123016^2 + 84915^2 .

It is a cyclic number.

It is not a de Polignac number, because 22343493481 - 2²³ = 22335104873 is a prime.

It is a super-2 number, since 2×22343493481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22343493181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11171746740 + 11171746741.

It is an arithmetic number, because the mean of its divisors is an integer number (11171746741).

Almost surely, 2^22343493481 is an apocalyptic number.

It is an amenable number.

22343493481 is a deficient number, since it is larger than the sum of its proper divisors (1).

22343493481 is an equidigital number, since it uses as much as digits as its factorization.

22343493481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 43.

The spelling of 22343493481 in words is "twenty-two billion, three hundred forty-three million, four hundred ninety-three thousand, four hundred eighty-one".