109279067866 has 4 divisors (see below), whose sum is σ = 163918601802. Its totient is φ = 54639533932.

The previous prime is 109279067839. The next prime is 109279067867. The reversal of 109279067866 is 668760972901.

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., 109249419841 + 29648025 = 330529^2 + 5445^2 .

It is a super-3 number, since 3×109279067866³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (109279067867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27319766965 + ... + 27319766968.

Almost surely, 2^109279067866 is an apocalyptic number.

109279067866 is a deficient number, since it is larger than the sum of its proper divisors (54639533936).

109279067866 is an equidigital number, since it uses as much as digits as its factorization.

109279067866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54639533935.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 109279067866 in words is "one hundred nine billion, two hundred seventy-nine million, sixty-seven thousand, eight hundred sixty-six".