68702896643 has 2 divisors, whose sum is σ = 68702896644. Its totient is φ = 68702896642.

The previous prime is 68702896631. The next prime is 68702896699. The reversal of 68702896643 is 34669820786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68702896643 - 2¹⁰ = 68702895619 is a prime.

It is not a weakly prime, because it can be changed into another prime (68702893643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34351448321 + 34351448322.

It is an arithmetic number, because the mean of its divisors is an integer number (34351448322).

Almost surely, 2^68702896643 is an apocalyptic number.

68702896643 is a deficient number, since it is larger than the sum of its proper divisors (1).

68702896643 is an equidigital number, since it uses as much as digits as its factorization.

68702896643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 68702896643 in words is "sixty-eight billion, seven hundred two million, eight hundred ninety-six thousand, six hundred forty-three".