74585039871 has 8 divisors (see below), whose sum is σ = 99447982000. Its totient is φ = 49722728832.

The previous prime is 74585039843. The next prime is 74585039887. The reversal of 74585039871 is 17893058547.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74585039871 - 2¹⁷ = 74584908799 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 (74585039801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375255 + ... + 538503.

It is an arithmetic number, because the mean of its divisors is an integer number (12430997750).

Almost surely, 2^74585039871 is an apocalyptic number.

74585039871 is a deficient number, since it is larger than the sum of its proper divisors (24862942129).

74585039871 is a wasteful number, since it uses less digits than its factorization.

74585039871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315545.

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 74585039871 in words is "seventy-four billion, five hundred eighty-five million, thirty-nine thousand, eight hundred seventy-one".