648379508606 has 4 divisors (see below), whose sum is σ = 972569262912. Its totient is φ = 324189754302.

The previous prime is 648379508599. The next prime is 648379508617. The reversal of 648379508606 is 606805973846.

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, 162094877150 + ... + 162094877153.

It is an arithmetic number, because the mean of its divisors is an integer number (243142315728).

Almost surely, 2^648379508606 is an apocalyptic number.

648379508606 is a deficient number, since it is larger than the sum of its proper divisors (324189754306).

648379508606 is a wasteful number, since it uses less digits than its factorization.

648379508606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324189754305.

The product of its (nonzero) digits is 52254720, while the sum is 62.

The spelling of 648379508606 in words is "six hundred forty-eight billion, three hundred seventy-nine million, five hundred eight thousand, six hundred six".