647273348090 has 8 divisors (see below), whose sum is σ = 1165092026580. Its totient is φ = 258909339232.

The previous prime is 647273348083. The next prime is 647273348119. The reversal of 647273348090 is 90843372746.

It is a Cunningham number, because it is equal to 804533²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 647273348089 + 1 = 804533^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 32363667395 + ... + 32363667414.

Almost surely, 2^647273348090 is an apocalyptic number.

647273348090 is a deficient number, since it is larger than the sum of its proper divisors (517818678490).

647273348090 is a wasteful number, since it uses less digits than its factorization.

647273348090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64727334816.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 647273348090 in words is "six hundred forty-seven billion, two hundred seventy-three million, three hundred forty-eight thousand, ninety".