52639656888 has 384 divisors, whose sum is σ = 171908352000. Its totient is φ = 13298826240.

The previous prime is 52639656887. The next prime is 52639656893. The reversal of 52639656888 is 88865693625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52639656887) 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, 51657643 + ... + 51658661.

It is an arithmetic number, because the mean of its divisors is an integer number (447678000).

Almost surely, 2^52639656888 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 52639656888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85954176000).

52639656888 is an abundant number, since it is smaller than the sum of its proper divisors (119268695112).

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

52639656888 is a wasteful number, since it uses less digits than its factorization.

52639656888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1184 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 66.

The spelling of 52639656888 in words is "fifty-two billion, six hundred thirty-nine million, six hundred fifty-six thousand, eight hundred eighty-eight".