52145378112 has 56 divisors (see below), whose sum is σ = 140306450400. Its totient is φ = 17087182336.

The previous prime is 52145378107. The next prime is 52145378113. The reversal of 52145378112 is 21187354125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52145378113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2290287 + ... + 2312942.

Almost surely, 2^52145378112 is an apocalyptic number.

It is an amenable number.

52145378112 is an abundant number, since it is smaller than the sum of its proper divisors (88161072288).

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

52145378112 is a wasteful number, since it uses less digits than its factorization.

52145378112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603303 (or 4603293 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The spelling of 52145378112 in words is "fifty-two billion, one hundred forty-five million, three hundred seventy-eight thousand, one hundred twelve".