68995651 has 2 divisors, whose sum is σ = 68995652. Its totient is φ = 68995650.

The previous prime is 68995637. The next prime is 68995657. The reversal of 68995651 is 15659986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68995651 - 2⁹ = 68995139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68995595 and 68995604.

It is not a weakly prime, because it can be changed into another prime (68995657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34497825 + 34497826.

It is an arithmetic number, because the mean of its divisors is an integer number (34497826).

Almost surely, 2^68995651 is an apocalyptic number.

68995651 is a deficient number, since it is larger than the sum of its proper divisors (1).

68995651 is an equidigital number, since it uses as much as digits as its factorization.

68995651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 49.

The square root of 68995651 is about 8306.3620797555. The cubic root of 68995651 is about 410.1479755379.

The spelling of 68995651 in words is "sixty-eight million, nine hundred ninety-five thousand, six hundred fifty-one".