68969750029 has 2 divisors, whose sum is σ = 68969750030. Its totient is φ = 68969750028.

The previous prime is 68969750027. The next prime is 68969750071. The reversal of 68969750029 is 92005796986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64209026025 + 4760724004 = 253395^2 + 68998^2 .

It is a cyclic number.

It is not a de Polignac number, because 68969750029 - 2¹ = 68969750027 is a prime.

Together with 68969750027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68969750027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34484875014 + 34484875015.

It is an arithmetic number, because the mean of its divisors is an integer number (34484875015).

Almost surely, 2^68969750029 is an apocalyptic number.

It is an amenable number.

68969750029 is a deficient number, since it is larger than the sum of its proper divisors (1).

68969750029 is an equidigital number, since it uses as much as digits as its factorization.

68969750029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 68969750029 in words is "sixty-eight billion, nine hundred sixty-nine million, seven hundred fifty thousand, twenty-nine".