68201410421 has 2 divisors, whose sum is σ = 68201410422. Its totient is φ = 68201410420.

The previous prime is 68201410411. The next prime is 68201410427. The reversal of 68201410421 is 12401410286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61920847921 + 6280562500 = 248839^2 + 79250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68201410421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68201410427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34100705210 + 34100705211.

It is an arithmetic number, because the mean of its divisors is an integer number (34100705211).

Almost surely, 2^68201410421 is an apocalyptic number.

It is an amenable number.

68201410421 is a deficient number, since it is larger than the sum of its proper divisors (1).

68201410421 is an equidigital number, since it uses as much as digits as its factorization.

68201410421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 68201410421 in words is "sixty-eight billion, two hundred one million, four hundred ten thousand, four hundred twenty-one".