109279067865 has 64 divisors (see below), whose sum is σ = 194822081280. Its totient is φ = 51855298560.

The previous prime is 109279067839. The next prime is 109279067867. The reversal of 109279067865 is 568760972901.

It is not a de Polignac number, because 109279067865 - 2¹¹ = 109279065817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109279067799 and 109279067808.

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 in 63 ways as a sum of consecutive naturals, for example, 3561429 + ... + 3591981.

It is an arithmetic number, because the mean of its divisors is an integer number (3044095020).

Almost surely, 2^109279067865 is an apocalyptic number.

109279067865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109279067865 is a deficient number, since it is larger than the sum of its proper divisors (85543013415).

109279067865 is a wasteful number, since it uses less digits than its factorization.

109279067865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31034.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 109279067865 in words is "one hundred nine billion, two hundred seventy-nine million, sixty-seven thousand, eight hundred sixty-five".