68436414791 has 2 divisors, whose sum is σ = 68436414792. Its totient is φ = 68436414790.

The previous prime is 68436414751. The next prime is 68436414793. The reversal of 68436414791 is 19741463486.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68436414791 is a prime.

Together with 68436414793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68436414793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34218207395 + 34218207396.

It is an arithmetic number, because the mean of its divisors is an integer number (34218207396).

Almost surely, 2^68436414791 is an apocalyptic number.

68436414791 is a deficient number, since it is larger than the sum of its proper divisors (1).

68436414791 is an equidigital number, since it uses as much as digits as its factorization.

68436414791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 53.

The spelling of 68436414791 in words is "sixty-eight billion, four hundred thirty-six million, four hundred fourteen thousand, seven hundred ninety-one".