22381768409 has 32 divisors (see below), whose sum is σ = 31632706560. Its totient is φ = 15251457600.

The previous prime is 22381768373. The next prime is 22381768429. The reversal of 22381768409 is 90486718322.

It is a cyclic number.

It is not a de Polignac number, because 22381768409 - 2¹⁶ = 22381702873 is a prime.

It is a super-2 number, since 2×22381768409² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22381768429) 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 in 31 ways as a sum of consecutive naturals, for example, 569387 + ... + 607424.

It is an arithmetic number, because the mean of its divisors is an integer number (988522080).

Almost surely, 2^22381768409 is an apocalyptic number.

It is an amenable number.

22381768409 is a deficient number, since it is larger than the sum of its proper divisors (9250938151).

22381768409 is a wasteful number, since it uses less digits than its factorization.

22381768409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176861.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 22381768409 in words is "twenty-two billion, three hundred eighty-one million, seven hundred sixty-eight thousand, four hundred nine".