51064861850512 has 10 divisors (see below), whose sum is σ = 98938169835398. Its totient is φ = 25532430925248.

The previous prime is 51064861850467. The next prime is 51064861850531. The reversal of 51064861850512 is 21505816846015.

It can be written as a sum of positive squares in only one way, i.e., 37058825059216 + 14006036791296 = 6087596^2 + 3742464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51064861850512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595776932813 + ... + 1595776932844.

Almost surely, 2^{51064861850512} is an apocalyptic number.

It is an amenable number.

51064861850512 is a deficient number, since it is larger than the sum of its proper divisors (47873307984886).

51064861850512 is a wasteful number, since it uses less digits than its factorization.

51064861850512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191553865665 (or 3191553865659 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 52.

The spelling of 51064861850512 in words is "fifty-one trillion, sixty-four billion, eight hundred sixty-one million, eight hundred fifty thousand, five hundred twelve".