648155882 has 8 divisors (see below), whose sum is σ = 1060618752. Its totient is φ = 294616300.

The previous prime is 648155867. The next prime is 648155903. The reversal of 648155882 is 288551846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14730794 + ... + 14730837.

It is an arithmetic number, because the mean of its divisors is an integer number (132577344).

Almost surely, 2^648155882 is an apocalyptic number.

648155882 is a deficient number, since it is larger than the sum of its proper divisors (412462870).

648155882 is a wasteful number, since it uses less digits than its factorization.

648155882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29461644.

The product of its digits is 614400, while the sum is 47.

The square root of 648155882 is about 25458.9057502478. The cubic root of 648155882 is about 865.4191257407.

The spelling of 648155882 in words is "six hundred forty-eight million, one hundred fifty-five thousand, eight hundred eighty-two".