22782510913 has 2 divisors, whose sum is σ = 22782510914. Its totient is φ = 22782510912.

The previous prime is 22782510911. The next prime is 22782510929. The reversal of 22782510913 is 31901528722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15493278784 + 7289232129 = 124472^2 + 85377^2 .

It is a cyclic number.

It is not a de Polignac number, because 22782510913 - 2¹ = 22782510911 is a prime.

Together with 22782510911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22782510911) 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 as a sum of consecutive naturals, namely, 11391255456 + 11391255457.

It is an arithmetic number, because the mean of its divisors is an integer number (11391255457).

Almost surely, 2^22782510913 is an apocalyptic number.

It is an amenable number.

22782510913 is a deficient number, since it is larger than the sum of its proper divisors (1).

22782510913 is an equidigital number, since it uses as much as digits as its factorization.

22782510913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 22782510913 in words is "twenty-two billion, seven hundred eighty-two million, five hundred ten thousand, nine hundred thirteen".