68479025029 has 2 divisors, whose sum is σ = 68479025030. Its totient is φ = 68479025028.

The previous prime is 68479024969. The next prime is 68479025053. The reversal of 68479025029 is 92052097486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38336856804 + 30142168225 = 195798^2 + 173615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68479025029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68479026029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34239512514 + 34239512515.

It is an arithmetic number, because the mean of its divisors is an integer number (34239512515).

Almost surely, 2^68479025029 is an apocalyptic number.

It is an amenable number.

68479025029 is a deficient number, since it is larger than the sum of its proper divisors (1).

68479025029 is an equidigital number, since it uses as much as digits as its factorization.

68479025029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 68479025029 in words is "sixty-eight billion, four hundred seventy-nine million, twenty-five thousand, twenty-nine".