648619675 has 12 divisors (see below), whose sum is σ = 877405896. Its totient is φ = 471723200.

The previous prime is 648619669. The next prime is 648619679. The reversal of 648619675 is 576916846.

648619675 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-648619675 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648619679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1179034 + ... + 1179583.

It is an arithmetic number, because the mean of its divisors is an integer number (73117158).

Almost surely, 2^648619675 is an apocalyptic number.

648619675 is a deficient number, since it is larger than the sum of its proper divisors (228786221).

648619675 is a wasteful number, since it uses less digits than its factorization.

648619675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358638 (or 2358633 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 648619675 is about 25468.0127807413. The cubic root of 648619675 is about 865.6254956619.

The spelling of 648619675 in words is "six hundred forty-eight million, six hundred nineteen thousand, six hundred seventy-five".