52111989180 has 144 divisors (see below), whose sum is σ = 169404266304. Its totient is φ = 12933043200.

The previous prime is 52111989133. The next prime is 52111989191. The reversal of 52111989180 is 8198911125.

52111989180 is a `hidden beast` number, since 521 + 119 + 8 + 9 + 1 + 8 + 0 = 666.

52111989180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16921 + ... + 323280.

It is an arithmetic number, because the mean of its divisors is an integer number (1176418516).

Almost surely, 2^52111989180 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 52111989180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84702133152).

52111989180 is an abundant number, since it is smaller than the sum of its proper divisors (117292277124).

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

52111989180 is a wasteful number, since it uses less digits than its factorization.

52111989180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340276 (or 340271 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 45.

The spelling of 52111989180 in words is "fifty-two billion, one hundred eleven million, nine hundred eighty-nine thousand, one hundred eighty".