74085894585 has 24 divisors (see below), whose sum is σ = 128424933000. Its totient is φ = 39509590272.

The previous prime is 74085894569. The next prime is 74085894587. The reversal of 74085894585 is 58549858047.

74085894585 is a `hidden beast` number, since 7 + 4 + 0 + 8 + 589 + 45 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9073134009 + 65012760576 = 95253^2 + 254976^2 .

It is not a de Polignac number, because 74085894585 - 2⁴ = 74085894569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74085894587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 656437 + ... + 760973.

It is an arithmetic number, because the mean of its divisors is an integer number (5351038875).

Almost surely, 2^74085894585 is an apocalyptic number.

It is an amenable number.

74085894585 is a deficient number, since it is larger than the sum of its proper divisors (54339038415).

74085894585 is a wasteful number, since it uses less digits than its factorization.

74085894585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120297 (or 120294 counting only the distinct ones).

The product of its (nonzero) digits is 64512000, while the sum is 63.

The spelling of 74085894585 in words is "seventy-four billion, eighty-five million, eight hundred ninety-four thousand, five hundred eighty-five".