6484345540 has 12 divisors (see below), whose sum is σ = 13617125676. Its totient is φ = 2593738208.

The previous prime is 6484345507. The next prime is 6484345577. The reversal of 6484345540 is 455434846.

It can be written as a sum of positive squares in 2 ways, for example, as 1810162116 + 4674183424 = 42546^2 + 68368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162108619 + ... + 162108658.

It is an arithmetic number, because the mean of its divisors is an integer number (1134760473).

Almost surely, 2^6484345540 is an apocalyptic number.

It is an amenable number.

6484345540 is an abundant number, since it is smaller than the sum of its proper divisors (7132780136).

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

6484345540 is a wasteful number, since it uses less digits than its factorization.

6484345540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324217286 (or 324217284 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The square root of 6484345540 is about 80525.4341186684. The cubic root of 6484345540 is about 1864.7561574597.

The spelling of 6484345540 in words is "six billion, four hundred eighty-four million, three hundred forty-five thousand, five hundred forty".