68619012907 has 2 divisors, whose sum is σ = 68619012908. Its totient is φ = 68619012906.

The previous prime is 68619012893. The next prime is 68619012923. The reversal of 68619012907 is 70921091686.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68619012907 is a prime.

It is not a weakly prime, because it can be changed into another prime (68619012977) 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, 34309506453 + 34309506454.

It is an arithmetic number, because the mean of its divisors is an integer number (34309506454).

Almost surely, 2^68619012907 is an apocalyptic number.

68619012907 is a deficient number, since it is larger than the sum of its proper divisors (1).

68619012907 is an equidigital number, since it uses as much as digits as its factorization.

68619012907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 68619012907 in words is "sixty-eight billion, six hundred nineteen million, twelve thousand, nine hundred seven".