68712701807 has 4 divisors (see below), whose sum is σ = 68849308080. Its totient is φ = 68576095536.

The previous prime is 68712701803. The next prime is 68712701821. The reversal of 68712701807 is 70810721786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68712701807 - 2² = 68712701803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68712701803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68302382 + ... + 68303387.

It is an arithmetic number, because the mean of its divisors is an integer number (17212327020).

Almost surely, 2^68712701807 is an apocalyptic number.

68712701807 is a deficient number, since it is larger than the sum of its proper divisors (136606273).

68712701807 is a wasteful number, since it uses less digits than its factorization.

68712701807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136606272.

The product of its (nonzero) digits is 263424, while the sum is 47.

The spelling of 68712701807 in words is "sixty-eight billion, seven hundred twelve million, seven hundred one thousand, eight hundred seven".