22235436649 has 2 divisors, whose sum is σ = 22235436650. Its totient is φ = 22235436648.

The previous prime is 22235436593. The next prime is 22235436661. The reversal of 22235436649 is 94663453222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20119436649 + 2116000000 = 141843^2 + 46000^2 .

It is a cyclic number.

It is not a de Polignac number, because 22235436649 - 2⁹ = 22235436137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22235436599 and 22235436608.

It is not a weakly prime, because it can be changed into another prime (22235436749) 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 as a sum of consecutive naturals, namely, 11117718324 + 11117718325.

It is an arithmetic number, because the mean of its divisors is an integer number (11117718325).

Almost surely, 2^22235436649 is an apocalyptic number.

It is an amenable number.

22235436649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22235436649 is an equidigital number, since it uses as much as digits as its factorization.

22235436649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 46.

The spelling of 22235436649 in words is "twenty-two billion, two hundred thirty-five million, four hundred thirty-six thousand, six hundred forty-nine".