6477253272 has 96 divisors (see below), whose sum is σ = 20080363680. Its totient is φ = 1847715840.

The previous prime is 6477253231. The next prime is 6477253339. The reversal of 6477253272 is 2723527746.

6477253272 is a `hidden beast` number, since 6 + 47 + 7 + 2 + 532 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319272 + ... + 338952.

It is an arithmetic number, because the mean of its divisors is an integer number (209170455).

Almost surely, 2^6477253272 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 6477253272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10040181840).

6477253272 is an abundant number, since it is smaller than the sum of its proper divisors (13603110408).

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

6477253272 is a wasteful number, since it uses less digits than its factorization.

6477253272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20353 (or 20346 counting only the distinct ones).

The product of its digits is 987840, while the sum is 45.

The square root of 6477253272 is about 80481.3846302361. The cubic root of 6477253272 is about 1864.0760489827.

The spelling of 6477253272 in words is "six billion, four hundred seventy-seven million, two hundred fifty-three thousand, two hundred seventy-two".