648717562752 has 512 divisors, whose sum is σ = 2157561446400. Its totient is φ = 168632893440.

The previous prime is 648717562697. The next prime is 648717562763. The reversal of 648717562752 is 257265717846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113073228 + ... + 113078964.

It is an arithmetic number, because the mean of its divisors is an integer number (4213987200).

Almost surely, 2^648717562752 is an apocalyptic number.

648717562752 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648717562752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078780723200).

648717562752 is an abundant number, since it is smaller than the sum of its proper divisors (1508843883648).

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

648717562752 is a wasteful number, since it uses less digits than its factorization.

648717562752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874 (or 5862 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 60.

The spelling of 648717562752 in words is "six hundred forty-eight billion, seven hundred seventeen million, five hundred sixty-two thousand, seven hundred fifty-two".