6474441636 has 144 divisors (see below), whose sum is σ = 19264347648. Its totient is φ = 1814400000.

The previous prime is 6474441629. The next prime is 6474441679. The reversal of 6474441636 is 6361444746.

6474441636 is a `hidden beast` number, since 6 + 4 + 7 + 4 + 4 + 4 + 1 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6474441591 and 6474441600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 233511 + ... + 259761.

It is an arithmetic number, because the mean of its divisors is an integer number (133780192).

Almost surely, 2^6474441636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6474441636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9632173824).

6474441636 is an abundant number, since it is smaller than the sum of its proper divisors (12789906012).

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

6474441636 is a wasteful number, since it uses less digits than its factorization.

6474441636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26322 (or 26317 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The square root of 6474441636 is about 80463.9151172748. The cubic root of 6474441636 is about 1863.8062915388.

The spelling of 6474441636 in words is "six billion, four hundred seventy-four million, four hundred forty-one thousand, six hundred thirty-six".