1648800953 has 4 divisors (see below), whose sum is σ = 1650270288. Its totient is φ = 1647331620.

The previous prime is 1648800929. The next prime is 1648800971. The reversal of 1648800953 is 3590088461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1648800953 - 2⁶ = 1648800889 is a prime.

It is a super-2 number, since 2×1648800953² = 5437089165227416418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648800353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732983 + ... + 735228.

It is an arithmetic number, because the mean of its divisors is an integer number (412567572).

Almost surely, 2^1648800953 is an apocalyptic number.

It is an amenable number.

1648800953 is a deficient number, since it is larger than the sum of its proper divisors (1469335).

1648800953 is a wasteful number, since it uses less digits than its factorization.

1648800953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469334.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1648800953 is about 40605.4300925381. The cubic root of 1648800953 is about 1181.3794441800.

The spelling of 1648800953 in words is "one billion, six hundred forty-eight million, eight hundred thousand, nine hundred fifty-three".