131928388536 has 32 divisors (see below), whose sum is σ = 376938253440. Its totient is φ = 37693825248.

The previous prime is 131928388513. The next prime is 131928388561. The reversal of 131928388536 is 635883829131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392643846 + ... + 392644181.

It is an arithmetic number, because the mean of its divisors is an integer number (11779320420).

Almost surely, 2^131928388536 is an apocalyptic number.

It is an amenable number.

131928388536 is an abundant number, since it is smaller than the sum of its proper divisors (245009864904).

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

131928388536 is a wasteful number, since it uses less digits than its factorization.

131928388536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785288043 (or 785288039 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 131928388536 in words is "one hundred thirty-one billion, nine hundred twenty-eight million, three hundred eighty-eight thousand, five hundred thirty-six".