8185058840 has 32 divisors (see below), whose sum is σ = 21047294880. Its totient is φ = 2806305792.

The previous prime is 8185058809. The next prime is 8185058879. The reversal of 8185058840 is 488505818.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14615897 + ... + 14616456.

It is an arithmetic number, because the mean of its divisors is an integer number (657727965).

Almost surely, 2^8185058840 is an apocalyptic number.

It is an amenable number.

8185058840 is an abundant number, since it is smaller than the sum of its proper divisors (12862236040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8185058840 is a wasteful number, since it uses less digits than its factorization.

8185058840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29232371 (or 29232367 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 47.

The square root of 8185058840 is about 90471.3150119970. The cubic root of 8185058840 is about 2015.3041625952.

The spelling of 8185058840 in words is "eight billion, one hundred eighty-five million, fifty-eight thousand, eight hundred forty".