648752261323 has 8 divisors (see below), whose sum is σ = 649503651600. Its totient is φ = 648001298208.

The previous prime is 648752261293. The next prime is 648752261327. The reversal of 648752261323 is 323162257846.

648752261323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648752261323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648752261327) 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, 2984008 + ... + 3194026.

It is an arithmetic number, because the mean of its divisors is an integer number (81187956450).

Almost surely, 2^648752261323 is an apocalyptic number.

648752261323 is a deficient number, since it is larger than the sum of its proper divisors (751390277).

648752261323 is a wasteful number, since it uses less digits than its factorization.

648752261323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213581.

The product of its digits is 2903040, while the sum is 49.

The spelling of 648752261323 in words is "six hundred forty-eight billion, seven hundred fifty-two million, two hundred sixty-one thousand, three hundred twenty-three".