23491816307 has 2 divisors, whose sum is σ = 23491816308. Its totient is φ = 23491816306.

The previous prime is 23491816267. The next prime is 23491816417. The reversal of 23491816307 is 70361819432.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23491816307 is a prime.

It is a super-2 number, since 2×23491816307² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23491816807) 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, 11745908153 + 11745908154.

It is an arithmetic number, because the mean of its divisors is an integer number (11745908154).

Almost surely, 2^23491816307 is an apocalyptic number.

23491816307 is a deficient number, since it is larger than the sum of its proper divisors (1).

23491816307 is an equidigital number, since it uses as much as digits as its factorization.

23491816307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 23491816307 in words is "twenty-three billion, four hundred ninety-one million, eight hundred sixteen thousand, three hundred seven".