68600488421 has 2 divisors, whose sum is σ = 68600488422. Its totient is φ = 68600488420.

The previous prime is 68600488409. The next prime is 68600488441. The reversal of 68600488421 is 12488400686.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51904230625 + 16696257796 = 227825^2 + 129214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68600488421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68600488441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34300244210 + 34300244211.

It is an arithmetic number, because the mean of its divisors is an integer number (34300244211).

Almost surely, 2^68600488421 is an apocalyptic number.

It is an amenable number.

68600488421 is a deficient number, since it is larger than the sum of its proper divisors (1).

68600488421 is an equidigital number, since it uses as much as digits as its factorization.

68600488421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 589824, while the sum is 47.

The spelling of 68600488421 in words is "sixty-eight billion, six hundred million, four hundred eighty-eight thousand, four hundred twenty-one".