68074013 has 4 divisors (see below), whose sum is σ = 77798880. Its totient is φ = 58349148.

The previous prime is 68074009. The next prime is 68074051. The reversal of 68074013 is 31047086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68074013 - 2² = 68074009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68074003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862423 + ... + 4862436.

It is an arithmetic number, because the mean of its divisors is an integer number (19449720).

Almost surely, 2^68074013 is an apocalyptic number.

It is an amenable number.

68074013 is a deficient number, since it is larger than the sum of its proper divisors (9724867).

68074013 is an equidigital number, since it uses as much as digits as its factorization.

68074013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724866.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 68074013 is about 8250.6977280712. The cubic root of 68074013 is about 408.3135425458.

The spelling of 68074013 in words is "sixty-eight million, seventy-four thousand, thirteen".