5648121645 has 16 divisors (see below), whose sum is σ = 9051064512. Its totient is φ = 3007641600.

The previous prime is 5648121571. The next prime is 5648121683. The reversal of 5648121645 is 5461218465.

It is not a de Polignac number, because 5648121645 - 2⁷ = 5648121517 is a prime.

It is a super-3 number, since 3×5648121645³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5648121597 and 5648121606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283156 + ... + 302445.

It is an arithmetic number, because the mean of its divisors is an integer number (565691532).

Almost surely, 2^5648121645 is an apocalyptic number.

It is an amenable number.

5648121645 is a deficient number, since it is larger than the sum of its proper divisors (3402942867).

5648121645 is a wasteful number, since it uses less digits than its factorization.

5648121645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586252.

The product of its digits is 230400, while the sum is 42.

The square root of 5648121645 is about 75153.9862216237. The cubic root of 5648121645 is about 1780.8800980622.

The spelling of 5648121645 in words is "five billion, six hundred forty-eight million, one hundred twenty-one thousand, six hundred forty-five".