18307506307 has 2 divisors, whose sum is σ = 18307506308. Its totient is φ = 18307506306.

The previous prime is 18307506293. The next prime is 18307506331. The reversal of 18307506307 is 70360570381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18307506307 - 2⁷ = 18307506179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18307506307.

It is not a weakly prime, because it can be changed into another prime (18307506377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9153753153 + 9153753154.

It is an arithmetic number, because the mean of its divisors is an integer number (9153753154).

Almost surely, 2^18307506307 is an apocalyptic number.

18307506307 is a deficient number, since it is larger than the sum of its proper divisors (1).

18307506307 is an equidigital number, since it uses as much as digits as its factorization.

18307506307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 18307506307 in words is "eighteen billion, three hundred seven million, five hundred six thousand, three hundred seven".