22492681357 has 4 divisors (see below), whose sum is σ = 22643639100. Its totient is φ = 22341723616.

The previous prime is 22492681349. The next prime is 22492681381. The reversal of 22492681357 is 75318629422.

It is a happy number.

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 7120153161 + 15372528196 = 84381^2 + 123986^2 .

It is a cyclic number.

It is not a de Polignac number, because 22492681357 - 2³ = 22492681349 is a prime.

It is a super-2 number, since 2×22492681357² (a number of 22 digits) contains 22 as substring.

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 22492681357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22492681307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75478648 + ... + 75478945.

It is an arithmetic number, because the mean of its divisors is an integer number (5660909775).

Almost surely, 2^22492681357 is an apocalyptic number.

It is an amenable number.

22492681357 is a deficient number, since it is larger than the sum of its proper divisors (150957743).

22492681357 is a wasteful number, since it uses less digits than its factorization.

22492681357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150957742.

The product of its digits is 1451520, while the sum is 49.

The spelling of 22492681357 in words is "twenty-two billion, four hundred ninety-two million, six hundred eighty-one thousand, three hundred fifty-seven".