74604440647 has 16 divisors (see below), whose sum is σ = 82521427968. Its totient is φ = 66877030080.

The previous prime is 74604440639. The next prime is 74604440663.

74604440647 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 74604440647 - 2³ = 74604440639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74604440597 and 74604440606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74604440447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4410468 + ... + 4427350.

It is an arithmetic number, because the mean of its divisors is an integer number (5157589248).

Almost surely, 2^74604440647 is an apocalyptic number.

74604440647 is a deficient number, since it is larger than the sum of its proper divisors (7916987321).

74604440647 is a wasteful number, since it uses less digits than its factorization.

74604440647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22470.

The product of its (nonzero) digits is 1806336, while the sum is 46.

The spelling of 74604440647 in words is "seventy-four billion, six hundred four million, four hundred forty thousand, six hundred forty-seven".