22492681349 has 2 divisors, whose sum is σ = 22492681350. Its totient is φ = 22492681348.

The previous prime is 22492681307. The next prime is 22492681381. The reversal of 22492681349 is 94318629422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22449028900 + 43652449 = 149830^2 + 6607^2 .

It is a cyclic number.

It is not a de Polignac number, because 22492681349 - 2¹² = 22492677253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22492681297 and 22492681306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22492681399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11246340674 + 11246340675.

It is an arithmetic number, because the mean of its divisors is an integer number (11246340675).

Almost surely, 2^22492681349 is an apocalyptic number.

It is an amenable number.

22492681349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22492681349 is an equidigital number, since it uses as much as digits as its factorization.

22492681349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 50.

The spelling of 22492681349 in words is "twenty-two billion, four hundred ninety-two million, six hundred eighty-one thousand, three hundred forty-nine".