68972329498829 has 2 divisors, whose sum is σ = 68972329498830. Its totient is φ = 68972329498828.

The previous prime is 68972329498759. The next prime is 68972329498867. The reversal of 68972329498829 is 92889492327986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68008093876804 + 964235622025 = 8246702^2 + 981955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68972329498829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68972329495829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34486164749414 + 34486164749415.

It is an arithmetic number, because the mean of its divisors is an integer number (34486164749415).

Almost surely, 2^{68972329498829} is an apocalyptic number.

It is an amenable number.

68972329498829 is a deficient number, since it is larger than the sum of its proper divisors (1).

68972329498829 is an equidigital number, since it uses as much as digits as its factorization.

68972329498829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13544423424, while the sum is 86.

The spelling of 68972329498829 in words is "sixty-eight trillion, nine hundred seventy-two billion, three hundred twenty-nine million, four hundred ninety-eight thousand, eight hundred twenty-nine".