68970729959 has 2 divisors, whose sum is σ = 68970729960. Its totient is φ = 68970729958.

The previous prime is 68970729953. The next prime is 68970729979. The reversal of 68970729959 is 95992707986.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68970729959 is a prime.

It is a super-3 number, since 3×68970729959³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68970729892 and 68970729901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68970729953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34485364979 + 34485364980.

It is an arithmetic number, because the mean of its divisors is an integer number (34485364980).

Almost surely, 2^68970729959 is an apocalyptic number.

68970729959 is a deficient number, since it is larger than the sum of its proper divisors (1).

68970729959 is an equidigital number, since it uses as much as digits as its factorization.

68970729959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154314720, while the sum is 71.

The spelling of 68970729959 in words is "sixty-eight billion, nine hundred seventy million, seven hundred twenty-nine thousand, nine hundred fifty-nine".