5643178648771 has 8 divisors (see below), whose sum is σ = 5838532066080. Its totient is φ = 5447875968192.

The previous prime is 5643178648759. The next prime is 5643178648817. The reversal of 5643178648771 is 1778468713465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5643178648771 - 2¹¹ = 5643178646723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5643178648697 and 5643178648706.

It is not an unprimeable number, because it can be changed into a prime (5643178648571) 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, 12457815 + ... + 12902848.

It is an arithmetic number, because the mean of its divisors is an integer number (729816508260).

Almost surely, 2^{5643178648771} is an apocalyptic number.

5643178648771 is a deficient number, since it is larger than the sum of its proper divisors (195353417309).

5643178648771 is a wasteful number, since it uses less digits than its factorization.

5643178648771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25368365.

The product of its digits is 189665280, while the sum is 67.

The spelling of 5643178648771 in words is "five trillion, six hundred forty-three billion, one hundred seventy-eight million, six hundred forty-eight thousand, seven hundred seventy-one".