5643845757 has 24 divisors (see below), whose sum is σ = 8979691968. Its totient is φ = 3387297600.

The previous prime is 5643845749. The next prime is 5643845807. The reversal of 5643845757 is 7575483465.

5643845757 is a `hidden beast` number, since 5 + 64 + 3 + 8 + 4 + 575 + 7 = 666.

It is not a de Polignac number, because 5643845757 - 2³ = 5643845749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643845717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266544 + ... + 286937.

It is an arithmetic number, because the mean of its divisors is an integer number (374153832).

Almost surely, 2^5643845757 is an apocalyptic number.

It is an amenable number.

5643845757 is a deficient number, since it is larger than the sum of its proper divisors (3335846211).

5643845757 is a wasteful number, since it uses less digits than its factorization.

5643845757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553601 (or 553598 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 54.

The square root of 5643845757 is about 75125.5333225662. The cubic root of 5643845757 is about 1780.4305818794.

The spelling of 5643845757 in words is "five billion, six hundred forty-three million, eight hundred forty-five thousand, seven hundred fifty-seven".