51784994678112 has 288 divisors, whose sum is σ = 168731680545792. Its totient is φ = 15539912239104.

The previous prime is 51784994678101. The next prime is 51784994678147. The reversal of 51784994678112 is 21187649948715.

51784994678112 is a `hidden beast` number, since 5 + 1 + 7 + 8 + 49 + 9 + 467 + 8 + 112 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent 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, 5475688 + ... + 11556519.

It is an arithmetic number, because the mean of its divisors is an integer number (585873890784).

Almost surely, 2^{51784994678112} is an apocalyptic number.

It is an amenable number.

51784994678112 is an abundant number, since it is smaller than the sum of its proper divisors (116946685867680).

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

51784994678112 is a wasteful number, since it uses less digits than its factorization.

51784994678112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17032272 (or 17032252 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 72.

The spelling of 51784994678112 in words is "fifty-one trillion, seven hundred eighty-four billion, nine hundred ninety-four million, six hundred seventy-eight thousand, one hundred twelve".