68876251 has 2 divisors, whose sum is σ = 68876252. Its totient is φ = 68876250.

The previous prime is 68876219. The next prime is 68876267. The reversal of 68876251 is 15267886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68876251 - 2⁵ = 68876219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68876198 and 68876207.

It is not a weakly prime, because it can be changed into another prime (68873251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34438125 + 34438126.

It is an arithmetic number, because the mean of its divisors is an integer number (34438126).

Almost surely, 2^68876251 is an apocalyptic number.

68876251 is a deficient number, since it is larger than the sum of its proper divisors (1).

68876251 is an equidigital number, since it uses as much as digits as its factorization.

68876251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 68876251 is about 8299.1717056583. The cubic root of 68876251 is about 409.9112459085.

The spelling of 68876251 in words is "sixty-eight million, eight hundred seventy-six thousand, two hundred fifty-one".