648452503812 has 24 divisors (see below), whose sum is σ = 1592690360800. Its totient is φ = 204774474816.

The previous prime is 648452503781. The next prime is 648452503883. The reversal of 648452503812 is 218305254846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422044737 + ... + 1422045192.

Almost surely, 2^648452503812 is an apocalyptic number.

It is an amenable number.

648452503812 is an abundant number, since it is smaller than the sum of its proper divisors (944237856988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648452503812 is a wasteful number, since it uses less digits than its factorization.

648452503812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844089955 (or 2844089953 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 648452503812 in words is "six hundred forty-eight billion, four hundred fifty-two million, five hundred three thousand, eight hundred twelve".