648349758592 has 32 divisors (see below), whose sum is σ = 1291768755120. Its totient is φ = 324141129984.

The previous prime is 648349758577. The next prime is 648349758593. The reversal of 648349758592 is 295857943846.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (648349758593) 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, 993963 + ... + 1511509.

Almost surely, 2^648349758592 is an apocalyptic number.

It is an amenable number.

648349758592 is a deficient number, since it is larger than the sum of its proper divisors (643418996528).

648349758592 is an equidigital number, since it uses as much as digits as its factorization.

648349758592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527348 (or 527336 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 70.

The spelling of 648349758592 in words is "six hundred forty-eight billion, three hundred forty-nine million, seven hundred fifty-eight thousand, five hundred ninety-two".