68413451 has 2 divisors, whose sum is σ = 68413452. Its totient is φ = 68413450.

The previous prime is 68413441. The next prime is 68413459. The reversal of 68413451 is 15431486.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68413451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68413459) 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, 34206725 + 34206726.

It is an arithmetic number, because the mean of its divisors is an integer number (34206726).

Almost surely, 2^68413451 is an apocalyptic number.

68413451 is a deficient number, since it is larger than the sum of its proper divisors (1).

68413451 is an equidigital number, since it uses as much as digits as its factorization.

68413451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 68413451 is about 8271.2424096988. The cubic root of 68413451 is about 408.9910766959.

The spelling of 68413451 in words is "sixty-eight million, four hundred thirteen thousand, four hundred fifty-one".