23312604649 has 2 divisors, whose sum is σ = 23312604650. Its totient is φ = 23312604648.

The previous prime is 23312604647. The next prime is 23312604703. The reversal of 23312604649 is 94640621332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23292864400 + 19740249 = 152620^2 + 4443^2 .

It is a cyclic number.

It is not a de Polignac number, because 23312604649 - 2¹ = 23312604647 is a prime.

Together with 23312604647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23312604647) 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, 11656302324 + 11656302325.

It is an arithmetic number, because the mean of its divisors is an integer number (11656302325).

Almost surely, 2^23312604649 is an apocalyptic number.

It is an amenable number.

23312604649 is a deficient number, since it is larger than the sum of its proper divisors (1).

23312604649 is an equidigital number, since it uses as much as digits as its factorization.

23312604649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 23312604649 in words is "twenty-three billion, three hundred twelve million, six hundred four thousand, six hundred forty-nine".