51234205336356 has 96 divisors (see below), whose sum is σ = 138405510512640. Its totient is φ = 14447664975744.

The previous prime is 51234205336339. The next prime is 51234205336393. The reversal of 51234205336356 is 65363350243215.

It is a happy 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, 16394266 + ... + 19267598.

It is an arithmetic number, because the mean of its divisors is an integer number (1441724067840).

Almost surely, 2^{51234205336356} 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 51234205336356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69202755256320).

51234205336356 is an abundant number, since it is smaller than the sum of its proper divisors (87171305176284).

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

51234205336356 is a wasteful number, since it uses less digits than its factorization.

51234205336356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876113 (or 2876111 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 48.

The spelling of 51234205336356 in words is "fifty-one trillion, two hundred thirty-four billion, two hundred five million, three hundred thirty-six thousand, three hundred fifty-six".