5646351644 has 48 divisors (see below), whose sum is σ = 10621211328. Its totient is φ = 2617049088.

The previous prime is 5646351643. The next prime is 5646351647. The reversal of 5646351644 is 4461536465.

It is a junction number, because it is equal to n+sod(n) for n = 5646351595 and 5646351604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646351643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349684 + ... + 1353860.

It is an arithmetic number, because the mean of its divisors is an integer number (221275236).

Almost surely, 2^5646351644 is an apocalyptic number.

It is an amenable number.

5646351644 is a deficient number, since it is larger than the sum of its proper divisors (4974859684).

5646351644 is a wasteful number, since it uses less digits than its factorization.

5646351644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494 (or 4492 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 5646351644 is about 75142.2094697780. The cubic root of 5646351644 is about 1780.6940486648.

The spelling of 5646351644 in words is "five billion, six hundred forty-six million, three hundred fifty-one thousand, six hundred forty-four".