68870716063 has 2 divisors, whose sum is σ = 68870716064. Its totient is φ = 68870716062.

The previous prime is 68870716049. The next prime is 68870716099. The reversal of 68870716063 is 36061707886.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68870716063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68870716063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68870716043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34435358031 + 34435358032.

It is an arithmetic number, because the mean of its divisors is an integer number (34435358032).

Almost surely, 2^68870716063 is an apocalyptic number.

68870716063 is a deficient number, since it is larger than the sum of its proper divisors (1).

68870716063 is an equidigital number, since it uses as much as digits as its factorization.

68870716063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 68870716063 in words is "sixty-eight billion, eight hundred seventy million, seven hundred sixteen thousand, sixty-three".