68413507 has 2 divisors, whose sum is σ = 68413508. Its totient is φ = 68413506.

The previous prime is 68413493. The next prime is 68413517. The reversal of 68413507 is 70531486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68413507 - 2¹¹ = 68411459 is a prime.

It is not a weakly prime, because it can be changed into another prime (68413517) 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, 34206753 + 34206754.

It is an arithmetic number, because the mean of its divisors is an integer number (34206754).

Almost surely, 2^68413507 is an apocalyptic number.

68413507 is a deficient number, since it is larger than the sum of its proper divisors (1).

68413507 is an equidigital number, since it uses as much as digits as its factorization.

68413507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 68413507 is about 8271.2457949211. The cubic root of 68413507 is about 408.9911882894.

The spelling of 68413507 in words is "sixty-eight million, four hundred thirteen thousand, five hundred seven".