51234004665336 has 128 divisors (see below), whose sum is σ = 134477871091200. Its totient is φ = 16234890186240.

The previous prime is 51234004665329. The next prime is 51234004665419. The reversal of 51234004665336 is 63356640043215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157598670 + ... + 157923426.

It is an arithmetic number, because the mean of its divisors is an integer number (1050608367900).

Almost surely, 2^{51234004665336} 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 51234004665336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67238935545600).

51234004665336 is an abundant number, since it is smaller than the sum of its proper divisors (83243866425864).

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

51234004665336 is a wasteful number, since it uses less digits than its factorization.

51234004665336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326549 (or 326545 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 51234004665336 in words is "fifty-one trillion, two hundred thirty-four billion, four million, six hundred sixty-five thousand, three hundred thirty-six".