52131377136 has 40 divisors (see below), whose sum is σ = 134691210064. Its totient is φ = 17374740480.

The previous prime is 52131377119. The next prime is 52131377197. The reversal of 52131377136 is 63177313125.

It is a happy number.

52131377136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52131377094 and 52131377103.

It is a congruent number.

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, 297990 + ... + 439386.

Almost surely, 2^52131377136 is an apocalyptic number.

It is an amenable number.

52131377136 is an abundant number, since it is smaller than the sum of its proper divisors (82559832928).

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

52131377136 is a wasteful number, since it uses less digits than its factorization.

52131377136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149089 (or 149083 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The spelling of 52131377136 in words is "fifty-two billion, one hundred thirty-one million, three hundred seventy-seven thousand, one hundred thirty-six".