1648448871 has 8 divisors (see below), whose sum is σ = 2202701424. Its totient is φ = 1096581120.

The previous prime is 1648448861. The next prime is 1648448887. The reversal of 1648448871 is 1788448461.

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

It is not a de Polignac number, because 1648448871 - 2⁷ = 1648448743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648448821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594586 + ... + 597351.

It is an arithmetic number, because the mean of its divisors is an integer number (275337678).

Almost surely, 2^1648448871 is an apocalyptic number.

1648448871 is a deficient number, since it is larger than the sum of its proper divisors (554252553).

1648448871 is a wasteful number, since it uses less digits than its factorization.

1648448871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192401.

The product of its digits is 1376256, while the sum is 51.

The square root of 1648448871 is about 40601.0944556917. The cubic root of 1648448871 is about 1181.2953483108.

The spelling of 1648448871 in words is "one billion, six hundred forty-eight million, four hundred forty-eight thousand, eight hundred seventy-one".