647059470653 has 4 divisors (see below), whose sum is σ = 647127441468. Its totient is φ = 646991499840.

The previous prime is 647059470611. The next prime is 647059470661. The reversal of 647059470653 is 356074950746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 252809851204 + 394249619449 = 502802^2 + 627893^2 .

It is a cyclic number.

It is not a de Polignac number, because 647059470653 - 2²⁸ = 646791035197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647059770653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33971126 + ... + 33990167.

It is an arithmetic number, because the mean of its divisors is an integer number (161781860367).

Almost surely, 2^647059470653 is an apocalyptic number.

It is an amenable number.

647059470653 is a deficient number, since it is larger than the sum of its proper divisors (67970815).

647059470653 is an equidigital number, since it uses as much as digits as its factorization.

647059470653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67970814.

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 647059470653 in words is "six hundred forty-seven billion, fifty-nine million, four hundred seventy thousand, six hundred fifty-three".