5643147940 has 24 divisors (see below), whose sum is σ = 11853209592. Its totient is φ = 2256764160.

The previous prime is 5643147883. The next prime is 5643147941. The reversal of 5643147940 is 497413465.

It can be written as a sum of positive squares in 4 ways, for example, as 2676820644 + 2966327296 = 51738^2 + 54464^2 .

It is not an unprimeable number, because it can be changed into a prime (5643147941) 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, 70680 + ... + 127600.

It is an arithmetic number, because the mean of its divisors is an integer number (493883733).

Almost surely, 2^5643147940 is an apocalyptic number.

It is an amenable number.

5643147940 is an abundant number, since it is smaller than the sum of its proper divisors (6210061652).

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

5643147940 is a wasteful number, since it uses less digits than its factorization.

5643147940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61887 (or 61885 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 5643147940 is about 75120.8888392570. Note that the first 4 decimals coincide. The cubic root of 5643147940 is about 1780.3572001235.

The spelling of 5643147940 in words is "five billion, six hundred forty-three million, one hundred forty-seven thousand, nine hundred forty".