7385784161 has 6 divisors (see below), whose sum is σ = 8591626530. Its totient is φ = 6330672096.

The previous prime is 7385784137. The next prime is 7385784163. The reversal of 7385784161 is 1614875837.

It can be written as a sum of positive squares in only one way, i.e., 6716785936 + 668998225 = 81956^2 + 25865^2 .

It is not a de Polignac number, because 7385784161 - 2²⁶ = 7318675297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7385784163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75365096 + ... + 75365193.

It is an arithmetic number, because the mean of its divisors is an integer number (1431937755).

Almost surely, 2^7385784161 is an apocalyptic number.

It is an amenable number.

7385784161 is a deficient number, since it is larger than the sum of its proper divisors (1205842369).

7385784161 is a wasteful number, since it uses less digits than its factorization.

7385784161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150730303 (or 150730296 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 7385784161 is about 85940.5850631702. The cubic root of 7385784161 is about 1947.4465074515.

The spelling of 7385784161 in words is "seven billion, three hundred eighty-five million, seven hundred eighty-four thousand, one hundred sixty-one".