5393487721440 has 384 divisors, whose sum is σ = 20914681697280. Its totient is φ = 1137719328768.

The previous prime is 5393487721423. The next prime is 5393487721463. The reversal of 5393487721440 is 441277843935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 257570491 + ... + 257591429.

It is an arithmetic number, because the mean of its divisors is an integer number (54465316920).

Almost surely, 2^{5393487721440} 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 5393487721440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10457340848640).

5393487721440 is an abundant number, since it is smaller than the sum of its proper divisors (15521193975840).

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

5393487721440 is a wasteful number, since it uses less digits than its factorization.

5393487721440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26874 (or 26866 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 5393487721440 in words is "five trillion, three hundred ninety-three billion, four hundred eighty-seven million, seven hundred twenty-one thousand, four hundred forty".