68513707 has 2 divisors, whose sum is σ = 68513708. Its totient is φ = 68513706.

The previous prime is 68513699. The next prime is 68513737. The reversal of 68513707 is 70731586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68513707 - 2³ = 68513699 is a prime.

It is not a weakly prime, because it can be changed into another prime (68513737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34256853 + 34256854.

It is an arithmetic number, because the mean of its divisors is an integer number (34256854).

Almost surely, 2^68513707 is an apocalyptic number.

68513707 is a deficient number, since it is larger than the sum of its proper divisors (1).

68513707 is an equidigital number, since it uses as much as digits as its factorization.

68513707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 68513707 is about 8277.3007073562. The cubic root of 68513707 is about 409.1907635289.

The spelling of 68513707 in words is "sixty-eight million, five hundred thirteen thousand, seven hundred seven".