74609283609 has 27 divisors (see below), whose sum is σ = 125373537237. Its totient is φ = 42630598584.

The previous prime is 74609283601. The next prime is 74609283653. The reversal of 74609283609 is 90638290647.

It is a happy number.

The square root of 74609283609 is 273147.

It is a perfect power (a square), and thus also a powerful number.

74609283609 is a `hidden beast` number, since 7 + 4 + 6 + 0 + 9 + 28 + 3 + 609 = 666.

It is not a de Polignac number, because 74609283609 - 2³ = 74609283601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74609283601) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5729584 + ... + 5742590.

Almost surely, 2^74609283609 is an apocalyptic number.

74609283609 is the 273147-th square number.

74609283609 is the 136574-th centered octagonal number.

It is an amenable number.

74609283609 is a deficient number, since it is larger than the sum of its proper divisors (50764253628).

74609283609 is an frugal number, since it uses more digits than its factorization.

74609283609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26034 (or 13017 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 74609283609 in words is "seventy-four billion, six hundred nine million, two hundred eighty-three thousand, six hundred nine".