68683664587151 has 2 divisors, whose sum is σ = 68683664587152. Its totient is φ = 68683664587150.

The previous prime is 68683664587093. The next prime is 68683664587157. The reversal of 68683664587151 is 15178546638686.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68683664587151 is a prime.

It is a super-2 number, since 2×68683664587151² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68683664587157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34341832293575 + 34341832293576.

It is an arithmetic number, because the mean of its divisors is an integer number (34341832293576).

Almost surely, 2^{68683664587151} is an apocalyptic number.

68683664587151 is a deficient number, since it is larger than the sum of its proper divisors (1).

68683664587151 is an equidigital number, since it uses as much as digits as its factorization.

68683664587151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1393459200, while the sum is 74.

The spelling of 68683664587151 in words is "sixty-eight trillion, six hundred eighty-three billion, six hundred sixty-four million, five hundred eighty-seven thousand, one hundred fifty-one".