648153632 has 24 divisors (see below), whose sum is σ = 1458346176. Its totient is φ = 277780032.

The previous prime is 648153613. The next prime is 648153661. The reversal of 648153632 is 236351846.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446548 + ... + 1446995.

It is an arithmetic number, because the mean of its divisors is an integer number (60764424).

Almost surely, 2^648153632 is an apocalyptic number.

It is an amenable number.

648153632 is an abundant number, since it is smaller than the sum of its proper divisors (810192544).

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

648153632 is a wasteful number, since it uses less digits than its factorization.

648153632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893560 (or 2893552 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 648153632 is about 25458.8615613503. The cubic root of 648153632 is about 865.4181243380.

The spelling of 648153632 in words is "six hundred forty-eight million, one hundred fifty-three thousand, six hundred thirty-two".