22406780923 has 2 divisors, whose sum is σ = 22406780924. Its totient is φ = 22406780922.

The previous prime is 22406780881. The next prime is 22406780969. The reversal of 22406780923 is 32908760422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22406780923 - 2¹⁷ = 22406649851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22406780923.

It is not a weakly prime, because it can be changed into another prime (22406780983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11203390461 + 11203390462.

It is an arithmetic number, because the mean of its divisors is an integer number (11203390462).

Almost surely, 2^22406780923 is an apocalyptic number.

22406780923 is a deficient number, since it is larger than the sum of its proper divisors (1).

22406780923 is an equidigital number, since it uses as much as digits as its factorization.

22406780923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 22406780923 in words is "twenty-two billion, four hundred six million, seven hundred eighty thousand, nine hundred twenty-three".