68971617986 has 8 divisors (see below), whose sum is σ = 103472983440. Its totient is φ = 34480623508.

The previous prime is 68971617973. The next prime is 68971617989.

68971617986 is nontrivially palindromic in base 10.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68971617989) 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, 2576096 + ... + 2602731.

It is an arithmetic number, because the mean of its divisors is an integer number (12934122930).

Almost surely, 2^68971617986 is an apocalyptic number.

68971617986 is a deficient number, since it is larger than the sum of its proper divisors (34501365454).

68971617986 is a wasteful number, since it uses less digits than its factorization.

68971617986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185488.

The product of its digits is 54867456, while the sum is 68.

The spelling of 68971617986 in words is "sixty-eight billion, nine hundred seventy-one million, six hundred seventeen thousand, nine hundred eighty-six".