51436541857332 has 12 divisors (see below), whose sum is σ = 120018597667136. Its totient is φ = 17145513952440.

The previous prime is 51436541857331. The next prime is 51436541857339. The reversal of 51436541857332 is 23375814563415.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51436541857331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2143189244044 + ... + 2143189244067.

Almost surely, 2^{51436541857332} is an apocalyptic number.

It is an amenable number.

51436541857332 is an abundant number, since it is smaller than the sum of its proper divisors (68582055809804).

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

51436541857332 is a wasteful number, since it uses less digits than its factorization.

51436541857332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286378488118 (or 4286378488116 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 57.

The spelling of 51436541857332 in words is "fifty-one trillion, four hundred thirty-six billion, five hundred forty-one million, eight hundred fifty-seven thousand, three hundred thirty-two".