6484438782 has 48 divisors (see below), whose sum is σ = 14190564960. Its totient is φ = 2139841536.

The previous prime is 6484438781. The next prime is 6484438853. The reversal of 6484438782 is 2878344846.

It is a happy number.

6484438782 is a `hidden beast` number, since 6 + 48 + 443 + 87 + 82 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6484438781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2681638 + ... + 2684054.

It is an arithmetic number, because the mean of its divisors is an integer number (295636770).

Almost surely, 2^6484438782 is an apocalyptic number.

6484438782 is an abundant number, since it is smaller than the sum of its proper divisors (7706126178).

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

6484438782 is a wasteful number, since it uses less digits than its factorization.

6484438782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857 (or 3854 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 54.

The square root of 6484438782 is about 80526.0130765208. The cubic root of 6484438782 is about 1864.7650955377.

The spelling of 6484438782 in words is "six billion, four hundred eighty-four million, four hundred thirty-eight thousand, seven hundred eighty-two".