5571721626752 has 64 divisors (see below), whose sum is σ = 11207108872800. Its totient is φ = 2758973128704.

The previous prime is 5571721626733. The next prime is 5571721626773. The reversal of 5571721626752 is 2576261271755.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45532883 + ... + 45655085.

Almost surely, 2^{5571721626752} 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 5571721626752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5603554436400).

5571721626752 is an abundant number, since it is smaller than the sum of its proper divisors (5635387246048).

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

5571721626752 is a wasteful number, since it uses less digits than its factorization.

5571721626752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125653 (or 125641 counting only the distinct ones).

The product of its digits is 12348000, while the sum is 56.

The spelling of 5571721626752 in words is "five trillion, five hundred seventy-one billion, seven hundred twenty-one million, six hundred twenty-six thousand, seven hundred fifty-two".