52633443840 has 320 divisors, whose sum is σ = 171692136000. Its totient is φ = 13752336384.

The previous prime is 52633443839. The next prime is 52633443859. The reversal of 52633443840 is 4834433625.

It is a tau number, because it is divible by the number of its divisors (320).

It is a junction number, because it is equal to n+sod(n) for n = 52633443792 and 52633443801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150811986 + ... + 150812334.

It is an arithmetic number, because the mean of its divisors is an integer number (536537925).

Almost surely, 2^52633443840 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 52633443840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85846068000).

52633443840 is an abundant number, since it is smaller than the sum of its proper divisors (119058692160).

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

52633443840 is a wasteful number, since it uses less digits than its factorization.

52633443840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 52633443840 in words is "fifty-two billion, six hundred thirty-three million, four hundred forty-three thousand, eight hundred forty".