6405486648 has 32 divisors (see below), whose sum is σ = 17469509760. Its totient is φ = 1941056480.

The previous prime is 6405486629. The next prime is 6405486709. The reversal of 6405486648 is 8466845046.

It is a self number, because there is not a number n which added to its sum of digits gives 6405486648.

It is a congruent number.

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, 12131340 + ... + 12131867.

It is an arithmetic number, because the mean of its divisors is an integer number (545922180).

Almost surely, 2^6405486648 is an apocalyptic number.

It is an amenable number.

6405486648 is an abundant number, since it is smaller than the sum of its proper divisors (11064023112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6405486648 is a wasteful number, since it uses less digits than its factorization.

6405486648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24263227 (or 24263223 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The square root of 6405486648 is about 80034.2842037086. The cubic root of 6405486648 is about 1857.1659394888.

The spelling of 6405486648 in words is "six billion, four hundred five million, four hundred eighty-six thousand, six hundred forty-eight".