6530381888 has 14 divisors (see below), whose sum is σ = 12958726686. Its totient is φ = 3265190912.

The previous prime is 6530381867. The next prime is 6530381917. The reversal of 6530381888 is 8881830356.

It can be written as a sum of positive squares in only one way, i.e., 6405121024 + 125260864 = 80032^2 + 11192^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51018545 + ... + 51018672.

Almost surely, 2^6530381888 is an apocalyptic number.

It is an amenable number.

6530381888 is a deficient number, since it is larger than the sum of its proper divisors (6428344798).

6530381888 is a wasteful number, since it uses less digits than its factorization.

6530381888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102037229 (or 102037219 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 6530381888 is about 80810.7782910176. The cubic root of 6530381888 is about 1869.1587709674.

The spelling of 6530381888 in words is "six billion, five hundred thirty million, three hundred eighty-one thousand, eight hundred eighty-eight".