1648208863 has 8 divisors (see below), whose sum is σ = 1884229280. Its totient is φ = 1412328960.

The previous prime is 1648208813. The next prime is 1648208917. The reversal of 1648208863 is 3688028461.

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

It is not a de Polignac number, because 1648208863 - 2⁹ = 1648208351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648208813) 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, 8658 + ... + 58063.

It is an arithmetic number, because the mean of its divisors is an integer number (235528660).

Almost surely, 2^1648208863 is an apocalyptic number.

1648208863 is a deficient number, since it is larger than the sum of its proper divisors (236020417).

1648208863 is an equidigital number, since it uses as much as digits as its factorization.

1648208863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70257.

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 1648208863 is about 40598.1386642294. The cubic root of 1648208863 is about 1181.2380147977.

The spelling of 1648208863 in words is "one billion, six hundred forty-eight million, two hundred eight thousand, eight hundred sixty-three".