52188619840 has 56 divisors (see below), whose sum is σ = 142027607232. Its totient is φ = 17893240320.

The previous prime is 52188619831. The next prime is 52188619897. The reversal of 52188619840 is 4891688125.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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, 11647006 + ... + 11651485.

It is an arithmetic number, because the mean of its divisors is an integer number (2536207272).

Almost surely, 2^52188619840 is an apocalyptic number.

It is an amenable number.

52188619840 is an abundant number, since it is smaller than the sum of its proper divisors (89838987392).

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

52188619840 is a wasteful number, since it uses less digits than its factorization.

52188619840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23298515 (or 23298505 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 52188619840 in words is "fifty-two billion, one hundred eighty-eight million, six hundred nineteen thousand, eight hundred forty".