648804185088 has 88 divisors (see below), whose sum is σ = 1831023355392. Its totient is φ = 203546394624.

The previous prime is 648804185059. The next prime is 648804185111. The reversal of 648804185088 is 880581408846.

It is a congruent number.

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, 6159520 + ... + 6263967.

It is an arithmetic number, because the mean of its divisors is an integer number (20807083584).

Almost surely, 2^648804185088 is an apocalyptic number.

648804185088 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

648804185088 is an abundant number, since it is smaller than the sum of its proper divisors (1182219170304).

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

648804185088 is a wasteful number, since it uses less digits than its factorization.

648804185088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12423527 (or 12423509 counting only the distinct ones).

The product of its (nonzero) digits is 15728640, while the sum is 60.

The spelling of 648804185088 in words is "six hundred forty-eight billion, eight hundred four million, one hundred eighty-five thousand, eighty-eight".