8185738385 has 8 divisors (see below), whose sum is σ = 10715875776. Its totient is φ = 5953264240.

The previous prime is 8185738369. The next prime is 8185738399. The reversal of 8185738385 is 5838375818.

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

It is not a de Polignac number, because 8185738385 - 2⁴ = 8185738369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8185738385.

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, 74415749 + ... + 74415858.

It is an arithmetic number, because the mean of its divisors is an integer number (1339484472).

Almost surely, 2^8185738385 is an apocalyptic number.

It is an amenable number.

8185738385 is a deficient number, since it is larger than the sum of its proper divisors (2530137391).

8185738385 is a wasteful number, since it uses less digits than its factorization.

8185738385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148831623.

The product of its digits is 6451200, while the sum is 56.

The square root of 8185738385 is about 90475.0705166898. The cubic root of 8185738385 is about 2015.3599329933.

The spelling of 8185738385 in words is "eight billion, one hundred eighty-five million, seven hundred thirty-eight thousand, three hundred eighty-five".