6531646348 has 6 divisors (see below), whose sum is σ = 11430381116. Its totient is φ = 3265823172.

The previous prime is 6531646301. The next prime is 6531646369. The reversal of 6531646348 is 8436461356.

It is a junction number, because it is equal to n+sod(n) for n = 6531646298 and 6531646307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816455790 + ... + 816455797.

Almost surely, 2^6531646348 is an apocalyptic number.

It is an amenable number.

6531646348 is a deficient number, since it is larger than the sum of its proper divisors (4898734768).

6531646348 is a wasteful number, since it uses less digits than its factorization.

6531646348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632911591 (or 1632911589 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 6531646348 is about 80818.6014974276. The cubic root of 6531646348 is about 1869.2794032169.

The spelling of 6531646348 in words is "six billion, five hundred thirty-one million, six hundred forty-six thousand, three hundred forty-eight".