648920330965 has 8 divisors (see below), whose sum is σ = 778715395488. Its totient is φ = 519128932560.

The previous prime is 648920330957. The next prime is 648920330969. The reversal of 648920330965 is 569033029846.

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

It is not a de Polignac number, because 648920330965 - 2³ = 648920330957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648920330969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510787 + ... + 1248496.

It is an arithmetic number, because the mean of its divisors is an integer number (97339424436).

Almost surely, 2^648920330965 is an apocalyptic number.

It is an amenable number.

648920330965 is a deficient number, since it is larger than the sum of its proper divisors (129795064523).

648920330965 is a wasteful number, since it uses less digits than its factorization.

648920330965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833059.

The product of its (nonzero) digits is 8398080, while the sum is 55.

The spelling of 648920330965 in words is "six hundred forty-eight billion, nine hundred twenty million, three hundred thirty thousand, nine hundred sixty-five".