68810351 has 2 divisors, whose sum is σ = 68810352. Its totient is φ = 68810350.

The previous prime is 68810347. The next prime is 68810353. The reversal of 68810351 is 15301886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68810351 - 2² = 68810347 is a prime.

Together with 68810353, 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 (68810353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34405175 + 34405176.

It is an arithmetic number, because the mean of its divisors is an integer number (34405176).

Almost surely, 2^68810351 is an apocalyptic number.

68810351 is a deficient number, since it is larger than the sum of its proper divisors (1).

68810351 is an equidigital number, since it uses as much as digits as its factorization.

68810351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 68810351 is about 8295.2004797955. The cubic root of 68810351 is about 409.7804714127.

The spelling of 68810351 in words is "sixty-eight million, eight hundred ten thousand, three hundred fifty-one".