7161898384 has 15 divisors (see below), whose sum is σ = 13876834017. Its totient is φ = 3580779936.

The previous prime is 7161898357. The next prime is 7161898453. The reversal of 7161898384 is 4838981617.

The square root of 7161898384 is 84628.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 6967574784 = 13940^2 + 83472^2 .

It is a super-2 number, since 2×7161898384² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 327934 + ... + 349090.

Almost surely, 2^7161898384 is an apocalyptic number.

7161898384 is the 84628-th square number.

It is an amenable number.

7161898384 is a deficient number, since it is larger than the sum of its proper divisors (6714935633).

7161898384 is an frugal number, since it uses more digits than its factorization.

7161898384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42322 (or 21159 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The cubic root of 7161898384 is about 1927.5665666513.

The spelling of 7161898384 in words is "seven billion, one hundred sixty-one million, eight hundred ninety-eight thousand, three hundred eighty-four".