74568109 has 16 divisors (see below), whose sum is σ = 93159936. Its totient is φ = 57985200.

The previous prime is 74568097. The next prime is 74568157. The reversal of 74568109 is 90186547.

It is not a de Polignac number, because 74568109 - 2⁷ = 74567981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74562109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63094 + ... + 64264.

It is an arithmetic number, because the mean of its divisors is an integer number (5822496).

Almost surely, 2^74568109 is an apocalyptic number.

It is an amenable number.

74568109 is a deficient number, since it is larger than the sum of its proper divisors (18591827).

74568109 is a wasteful number, since it uses less digits than its factorization.

74568109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 74568109 is about 8635.2827979169. The cubic root of 74568109 is about 420.9052827695.

The spelling of 74568109 in words is "seventy-four million, five hundred sixty-eight thousand, one hundred nine".