74872430585 has 16 divisors (see below), whose sum is σ = 93312032400. Its totient is φ = 57624247296.

The previous prime is 74872430533. The next prime is 74872430593. The reversal of 74872430585 is 58503427847.

It can be written as a sum of positive squares in 8 ways, for example, as 6968409529 + 67904021056 = 83477^2 + 260584^2 .

It is a cyclic number.

It is not a de Polignac number, because 74872430585 - 2⁸ = 74872430329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2257220 + ... + 2290149.

It is an arithmetic number, because the mean of its divisors is an integer number (5832002025).

Almost surely, 2^74872430585 is an apocalyptic number.

It is an amenable number.

74872430585 is a deficient number, since it is larger than the sum of its proper divisors (18439601815).

74872430585 is a wasteful number, since it uses less digits than its factorization.

74872430585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547500.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 74872430585 in words is "seventy-four billion, eight hundred seventy-two million, four hundred thirty thousand, five hundred eighty-five".