1648312653 has 8 divisors (see below), whose sum is σ = 2366807968. Its totient is φ = 1014346224.

The previous prime is 1648312613. The next prime is 1648312657. The reversal of 1648312653 is 3562138461.

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

It is not a de Polignac number, because 1648312653 - 2⁸ = 1648312397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 42264427 = 1648312653 / (1 + 6 + 4 + 8 + 3 + 1 + 2 + 6 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648312657) 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, 21132175 + ... + 21132252.

It is an arithmetic number, because the mean of its divisors is an integer number (295850996).

Almost surely, 2^1648312653 is an apocalyptic number.

1648312653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1648312653 is a deficient number, since it is larger than the sum of its proper divisors (718495315).

1648312653 is a wasteful number, since it uses less digits than its factorization.

1648312653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42264443.

The product of its digits is 103680, while the sum is 39.

The square root of 1648312653 is about 40599.4169046798. The cubic root of 1648312653 is about 1181.2628090098.

The spelling of 1648312653 in words is "one billion, six hundred forty-eight million, three hundred twelve thousand, six hundred fifty-three".