647803960238 has 4 divisors (see below), whose sum is σ = 971705940360. Its totient is φ = 323901980118.

The previous prime is 647803960189. The next prime is 647803960267. The reversal of 647803960238 is 832069308746.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161950990058 + ... + 161950990061.

It is an arithmetic number, because the mean of its divisors is an integer number (242926485090).

Almost surely, 2^647803960238 is an apocalyptic number.

647803960238 is a deficient number, since it is larger than the sum of its proper divisors (323901980122).

647803960238 is a wasteful number, since it uses less digits than its factorization.

647803960238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323901980121.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 647803960238 in words is "six hundred forty-seven billion, eight hundred three million, nine hundred sixty thousand, two hundred thirty-eight".