6472811729 has 2 divisors, whose sum is σ = 6472811730. Its totient is φ = 6472811728.

The previous prime is 6472811713. The next prime is 6472811743. The reversal of 6472811729 is 9271182746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6468180625 + 4631104 = 80425^2 + 2152^2 .

It is a cyclic number.

It is not a de Polignac number, because 6472811729 - 2⁴ = 6472811713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6472811759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236405864 + 3236405865.

It is an arithmetic number, because the mean of its divisors is an integer number (3236405865).

Almost surely, 2^6472811729 is an apocalyptic number.

It is an amenable number.

6472811729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6472811729 is an equidigital number, since it uses as much as digits as its factorization.

6472811729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 47.

The square root of 6472811729 is about 80453.7862937475. The cubic root of 6472811729 is about 1863.6498772333.

The spelling of 6472811729 in words is "six billion, four hundred seventy-two million, eight hundred eleven thousand, seven hundred twenty-nine".