68798626719 has 4 divisors (see below), whose sum is σ = 91731502296. Its totient is φ = 45865751144.

The previous prime is 68798626717. The next prime is 68798626727. The reversal of 68798626719 is 91762689786.

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 68798626719 - 2¹ = 68798626717 is a prime.

It is a super-2 number, since 2×68798626719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68798626717) 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, 11466437784 + ... + 11466437789.

It is an arithmetic number, because the mean of its divisors is an integer number (22932875574).

Almost surely, 2^68798626719 is an apocalyptic number.

68798626719 is a deficient number, since it is larger than the sum of its proper divisors (22932875577).

68798626719 is a wasteful number, since it uses less digits than its factorization.

68798626719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22932875576.

The product of its digits is 109734912, while the sum is 69.

The spelling of 68798626719 in words is "sixty-eight billion, seven hundred ninety-eight million, six hundred twenty-six thousand, seven hundred nineteen".