51787380526532 has 144 divisors (see below), whose sum is σ = 110951043573888. Its totient is φ = 21048006228480.

The previous prime is 51787380526523. The next prime is 51787380526577. The reversal of 51787380526532 is 23562508378715.

51787380526532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 492171407 + ... + 492276617.

It is an arithmetic number, because the mean of its divisors is an integer number (770493358152).

Almost surely, 2^{51787380526532} 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 51787380526532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55475521786944).

51787380526532 is an abundant number, since it is smaller than the sum of its proper divisors (59163663047356).

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

51787380526532 is a wasteful number, since it uses less digits than its factorization.

51787380526532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106186 (or 106177 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 62.

The spelling of 51787380526532 in words is "fifty-one trillion, seven hundred eighty-seven billion, three hundred eighty million, five hundred twenty-six thousand, five hundred thirty-two".