68943434986 has 4 divisors (see below), whose sum is σ = 103415152482. Its totient is φ = 34471717492.

The previous prime is 68943434977. The next prime is 68943434999.

68943434986 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64760579361 + 4182855625 = 254481^2 + 64675^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17235858745 + ... + 17235858748.

Almost surely, 2^68943434986 is an apocalyptic number.

68943434986 is a deficient number, since it is larger than the sum of its proper divisors (34471717496).

68943434986 is a wasteful number, since it uses less digits than its factorization.

68943434986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34471717495.

The product of its digits is 107495424, while the sum is 64.

The spelling of 68943434986 in words is "sixty-eight billion, nine hundred forty-three million, four hundred thirty-four thousand, nine hundred eighty-six".