68753791 has 2 divisors, whose sum is σ = 68753792. Its totient is φ = 68753790.

The previous prime is 68753767. The next prime is 68753801. The reversal of 68753791 is 19735786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68753791 - 2⁵ = 68753759 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68753731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34376895 + 34376896.

It is an arithmetic number, because the mean of its divisors is an integer number (34376896).

Almost surely, 2^68753791 is an apocalyptic number.

68753791 is a deficient number, since it is larger than the sum of its proper divisors (1).

68753791 is an equidigital number, since it uses as much as digits as its factorization.

68753791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 68753791 is about 8291.7905786386. The cubic root of 68753791 is about 409.6681649727.

The spelling of 68753791 in words is "sixty-eight million, seven hundred fifty-three thousand, seven hundred ninety-one".