648913883488 has 96 divisors (see below), whose sum is σ = 1384318615680. Its totient is φ = 297652561920.

The previous prime is 648913883413. The next prime is 648913883543. The reversal of 648913883488 is 884388319846.

It is a super-4 number, since 4×648913883488⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85144318 + ... + 85151938.

It is an arithmetic number, because the mean of its divisors is an integer number (14419985580).

Almost surely, 2^648913883488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648913883488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692159307840).

648913883488 is an abundant number, since it is smaller than the sum of its proper divisors (735404732192).

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

648913883488 is a wasteful number, since it uses less digits than its factorization.

648913883488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880 (or 8872 counting only the distinct ones).

The product of its digits is 254803968, while the sum is 70.

The spelling of 648913883488 in words is "six hundred forty-eight billion, nine hundred thirteen million, eight hundred eighty-three thousand, four hundred eighty-eight".