68850020667 has 8 divisors (see below), whose sum is σ = 91808679424. Its totient is φ = 45895687848.

The previous prime is 68850020663. The next prime is 68850020693. The reversal of 68850020667 is 76602005886.

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

It is not a de Polignac number, because 68850020667 - 2² = 68850020663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68850020663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044163 + ... + 1108140.

It is an arithmetic number, because the mean of its divisors is an integer number (11476084928).

Almost surely, 2^68850020667 is an apocalyptic number.

68850020667 is a deficient number, since it is larger than the sum of its proper divisors (22958658757).

68850020667 is a wasteful number, since it uses less digits than its factorization.

68850020667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162969.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 68850020667 in words is "sixty-eight billion, eight hundred fifty million, twenty thousand, six hundred sixty-seven".