5273971165440 has 864 divisors, whose sum is σ = 19429531430400. Its totient is φ = 1317097635840.

The previous prime is 5273971165373. The next prime is 5273971165447. The reversal of 5273971165440 is 445611793725.

5273971165440 is a `hidden beast` number, since 5 + 2 + 7 + 3 + 97 + 1 + 1 + 6 + 544 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (5273971165447) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9468529642 + ... + 9468530198.

It is an arithmetic number, because the mean of its divisors is an integer number (22487883600).

Almost surely, 2^{5273971165440} 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 5273971165440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9714765715200).

5273971165440 is an abundant number, since it is smaller than the sum of its proper divisors (14155560264960).

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

5273971165440 is a wasteful number, since it uses less digits than its factorization.

5273971165440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 5273971165440 in words is "five trillion, two hundred seventy-three billion, nine hundred seventy-one million, one hundred sixty-five thousand, four hundred forty".