51213563652112 has 80 divisors (see below), whose sum is σ = 102085289333632. Its totient is φ = 24871417804800.

The previous prime is 51213563652077. The next prime is 51213563652113. The reversal of 51213563652112 is 21125636531215.

It is not an unprimeable number, because it can be changed into a prime (51213563652113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806951293 + ... + 807014755.

Almost surely, 2^{51213563652112} is an apocalyptic number.

It is an amenable number.

51213563652112 is a deficient number, since it is larger than the sum of its proper divisors (50871725681520).

51213563652112 is a wasteful number, since it uses less digits than its factorization.

51213563652112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65856 (or 65850 counting only the distinct ones).

The product of its digits is 324000, while the sum is 43.

The spelling of 51213563652112 in words is "fifty-one trillion, two hundred thirteen billion, five hundred sixty-three million, six hundred fifty-two thousand, one hundred twelve".