648872046420 has 48 divisors (see below), whose sum is σ = 1956598788480. Its totient is φ = 159722349696.

The previous prime is 648872046377. The next prime is 648872046421. The reversal of 648872046420 is 24640278846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648872046421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415942840 + ... + 415944399.

It is an arithmetic number, because the mean of its divisors is an integer number (40762474760).

Almost surely, 2^648872046420 is an apocalyptic number.

648872046420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648872046420 is an abundant number, since it is smaller than the sum of its proper divisors (1307726742060).

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

648872046420 is a wasteful number, since it uses less digits than its factorization.

648872046420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831887264 (or 831887262 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 51.

The spelling of 648872046420 in words is "six hundred forty-eight billion, eight hundred seventy-two million, forty-six thousand, four hundred twenty".