5271449231840 has 192 divisors, whose sum is σ = 13656998416320. Its totient is φ = 1906882560000.

The previous prime is 5271449231821. The next prime is 5271449231869. The reversal of 5271449231840 is 481329441725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532410890 + ... + 532420790.

It is an arithmetic number, because the mean of its divisors is an integer number (71130200085).

Almost surely, 2^{5271449231840} 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 5271449231840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6828499208160).

5271449231840 is an abundant number, since it is smaller than the sum of its proper divisors (8385549184480).

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

5271449231840 is a wasteful number, since it uses less digits than its factorization.

5271449231840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11477 (or 11469 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 5271449231840 in words is "five trillion, two hundred seventy-one billion, four hundred forty-nine million, two hundred thirty-one thousand, eight hundred forty".