5471780643840 has 352 divisors, whose sum is σ = 20010210130944. Its totient is φ = 1250136391680.

The previous prime is 5471780643827. The next prime is 5471780643853. The reversal of 5471780643840 is 483460871745.

It is an interprime number because it is at equal distance from previous prime (5471780643827) and next prime (5471780643853).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272123067 + ... + 272143173.

It is an arithmetic number, because the mean of its divisors is an integer number (56847187872).

Almost surely, 2^{5471780643840} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5471780643840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10005105065472).

5471780643840 is an abundant number, since it is smaller than the sum of its proper divisors (14538429487104).

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

5471780643840 is a wasteful number, since it uses less digits than its factorization.

5471780643840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22673 (or 22655 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 57.

The spelling of 5471780643840 in words is "five trillion, four hundred seventy-one billion, seven hundred eighty million, six hundred forty-three thousand, eight hundred forty".