6477131252 has 12 divisors (see below), whose sum is σ = 11337295620. Its totient is φ = 3237903936.

The previous prime is 6477131249. The next prime is 6477131263. The reversal of 6477131252 is 2521317746.

It can be written as a sum of positive squares in 2 ways, for example, as 4208895376 + 2268235876 = 64876^2 + 47626^2 .

It is a congruent number.

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, 143063 + ... + 182814.

It is an arithmetic number, because the mean of its divisors is an integer number (944774635).

Almost surely, 2^6477131252 is an apocalyptic number.

It is an amenable number.

6477131252 is a deficient number, since it is larger than the sum of its proper divisors (4860164368).

6477131252 is a wasteful number, since it uses less digits than its factorization.

6477131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330850 (or 330848 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 6477131252 is about 80480.6265631674. The cubic root of 6477131252 is about 1864.0643436102.

Adding to 6477131252 its reverse (2521317746), we get a palindrome (8998448998).

The spelling of 6477131252 in words is "six billion, four hundred seventy-seven million, one hundred thirty-one thousand, two hundred fifty-two".