39668751307 has 2 divisors, whose sum is σ = 39668751308. Its totient is φ = 39668751306.

The previous prime is 39668751301. The next prime is 39668751319. The reversal of 39668751307 is 70315786693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39668751307 - 2³ = 39668751299 is a prime.

It is a super-2 number, since 2×39668751307² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39668751301) 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, 19834375653 + 19834375654.

It is an arithmetic number, because the mean of its divisors is an integer number (19834375654).

Almost surely, 2^39668751307 is an apocalyptic number.

39668751307 is a deficient number, since it is larger than the sum of its proper divisors (1).

39668751307 is an equidigital number, since it uses as much as digits as its factorization.

39668751307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 39668751307 in words is "thirty-nine billion, six hundred sixty-eight million, seven hundred fifty-one thousand, three hundred seven".