68089910863 has 4 divisors (see below), whose sum is σ = 73327596328. Its totient is φ = 62852225400.

The previous prime is 68089910831. The next prime is 68089910887. The reversal of 68089910863 is 36801998086.

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 68089910863 - 2⁵ = 68089910831 is a prime.

It is a super-2 number, since 2×68089910863² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68089910798 and 68089910807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68089910803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618842713 + ... + 2618842738.

It is an arithmetic number, because the mean of its divisors is an integer number (18331899082).

Almost surely, 2^68089910863 is an apocalyptic number.

68089910863 is a deficient number, since it is larger than the sum of its proper divisors (5237685465).

68089910863 is a wasteful number, since it uses less digits than its factorization.

68089910863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237685464.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 68089910863 in words is "sixty-eight billion, eighty-nine million, nine hundred ten thousand, eight hundred sixty-three".