51870993549312 has 576 divisors, whose sum is σ = 165516720183360. Its totient is φ = 14393355927552.

The previous prime is 51870993549259. The next prime is 51870993549343. The reversal of 51870993549312 is 21394539907815.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6538631298 + ... + 6538639230.

It is an arithmetic number, because the mean of its divisors is an integer number (287355416985).

Almost surely, 2^{51870993549312} 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 51870993549312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82758360091680).

51870993549312 is an abundant number, since it is smaller than the sum of its proper divisors (113645726634048).

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

51870993549312 is a wasteful number, since it uses less digits than its factorization.

51870993549312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596 (or 8569 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 66.

The spelling of 51870993549312 in words is "fifty-one trillion, eight hundred seventy billion, nine hundred ninety-three million, five hundred forty-nine thousand, three hundred twelve".