5685646420 has 24 divisors (see below), whose sum is σ = 11941519464. Its totient is φ = 2273942016.

The previous prime is 5685646399. The next prime is 5685646457. The reversal of 5685646420 is 246465865.

It can be written as a sum of positive squares in 4 ways, for example, as 167236624 + 5518409796 = 12932^2 + 74286^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173592 + ... + 203728.

It is an arithmetic number, because the mean of its divisors is an integer number (497563311).

Almost surely, 2^5685646420 is an apocalyptic number.

It is an amenable number.

5685646420 is an abundant number, since it is smaller than the sum of its proper divisors (6255873044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5685646420 is a wasteful number, since it uses less digits than its factorization.

5685646420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39579 (or 39577 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The square root of 5685646420 is about 75403.2255278247. The cubic root of 5685646420 is about 1784.8153104218.

The spelling of 5685646420 in words is "five billion, six hundred eighty-five million, six hundred forty-six thousand, four hundred twenty".