68927072986 has 4 divisors (see below), whose sum is σ = 103390609482. Its totient is φ = 34463536492.

The previous prime is 68927072969. The next prime is 68927072989.

68927072986 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., 39117323961 + 29809749025 = 197781^2 + 172655^2 .

It is not an unprimeable number, because it can be changed into a prime (68927072989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17231768245 + ... + 17231768248.

Almost surely, 2^68927072986 is an apocalyptic number.

68927072986 is a deficient number, since it is larger than the sum of its proper divisors (34463536496).

68927072986 is a wasteful number, since it uses less digits than its factorization.

68927072986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34463536495.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 68927072986 in words is "sixty-eight billion, nine hundred twenty-seven million, seventy-two thousand, nine hundred eighty-six".