648079137203 has 4 divisors (see below), whose sum is σ = 648081152568. Its totient is φ = 648077121840.

The previous prime is 648079137191. The next prime is 648079137217. The reversal of 648079137203 is 302731970846.

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

It is a cyclic number.

It is not a de Polignac number, because 648079137203 - 2²⁰ = 648078088627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648079137103) 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, 405293 + ... + 1208478.

It is an arithmetic number, because the mean of its divisors is an integer number (162020288142).

Almost surely, 2^648079137203 is an apocalyptic number.

648079137203 is a deficient number, since it is larger than the sum of its proper divisors (2015365).

648079137203 is a wasteful number, since it uses less digits than its factorization.

648079137203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015364.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 648079137203 in words is "six hundred forty-eight billion, seventy-nine million, one hundred thirty-seven thousand, two hundred three".