51840536433756 has 96 divisors (see below), whose sum is σ = 139538836684800. Its totient is φ = 14672584810944.

The previous prime is 51840536433743. The next prime is 51840536433781. The reversal of 51840536433756 is 65733463504815.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51840536433756.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265938381 + ... + 266133243.

It is an arithmetic number, because the mean of its divisors is an integer number (1453529548800).

Almost surely, 2^{51840536433756} is an apocalyptic number.

It is an amenable number.

51840536433756 is an abundant number, since it is smaller than the sum of its proper divisors (87698300251044).

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

51840536433756 is a wasteful number, since it uses less digits than its factorization.

51840536433756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224583 (or 224581 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 60.

The spelling of 51840536433756 in words is "fifty-one trillion, eight hundred forty billion, five hundred thirty-six million, four hundred thirty-three thousand, seven hundred fifty-six".