648853411523 has 4 divisors (see below), whose sum is σ = 648855022608. Its totient is φ = 648851800440.

The previous prime is 648853411439. The next prime is 648853411537. The reversal of 648853411523 is 325114358846.

648853411523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 325114358846 = 2 ⋅162557179423.

It is a cyclic number.

It is not a de Polignac number, because 648853411523 - 2¹² = 648853407427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648853411543) 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, 392765 + ... + 1204977.

It is an arithmetic number, because the mean of its divisors is an integer number (162213755652).

Almost surely, 2^648853411523 is an apocalyptic number.

648853411523 is a deficient number, since it is larger than the sum of its proper divisors (1611085).

648853411523 is an equidigital number, since it uses as much as digits as its factorization.

648853411523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611084.

The product of its digits is 2764800, while the sum is 50.

The spelling of 648853411523 in words is "six hundred forty-eight billion, eight hundred fifty-three million, four hundred eleven thousand, five hundred twenty-three".