68800690687 has 8 divisors (see below), whose sum is σ = 69634824336. Its totient is φ = 67969105152.

The previous prime is 68800690571. The next prime is 68800690703. The reversal of 68800690687 is 78609600886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68800690687 - 2²³ = 68792302079 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 (68800690787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582673 + ... + 690730.

It is an arithmetic number, because the mean of its divisors is an integer number (8704353042).

Almost surely, 2^68800690687 is an apocalyptic number.

68800690687 is a deficient number, since it is larger than the sum of its proper divisors (834133649).

68800690687 is a wasteful number, since it uses less digits than its factorization.

68800690687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274057.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 68800690687 in words is "sixty-eight billion, eight hundred million, six hundred ninety thousand, six hundred eighty-seven".