52621836288 has 128 divisors (see below), whose sum is σ = 160370960640. Its totient is φ = 15034613760.

The previous prime is 52621836277. The next prime is 52621836353. The reversal of 52621836288 is 88263812625.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 52621836288.

It is a congruent number.

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, 649893 + ... + 726363.

It is an arithmetic number, because the mean of its divisors is an integer number (1252898130).

Almost surely, 2^52621836288 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 52621836288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80185480320).

52621836288 is an abundant number, since it is smaller than the sum of its proper divisors (107749124352).

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

52621836288 is an frugal number, since it uses more digits than its factorization.

52621836288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76511 (or 76483 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The spelling of 52621836288 in words is "fifty-two billion, six hundred twenty-one million, eight hundred thirty-six thousand, two hundred eighty-eight".