51579454843768 has 16 divisors (see below), whose sum is σ = 101801555613000. Its totient is φ = 24432373346976.

The previous prime is 51579454843753. The next prime is 51579454843801. The reversal of 51579454843768 is 86734845497515.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a junction number, because it is equal to n+sod(n) for n = 51579454843694 and 51579454843703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169669259203 + ... + 169669259506.

Almost surely, 2^{51579454843768} is an apocalyptic number.

It is an amenable number.

51579454843768 is a deficient number, since it is larger than the sum of its proper divisors (50222100769232).

51579454843768 is a wasteful number, since it uses less digits than its factorization.

51579454843768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339338518734 (or 339338518730 counting only the distinct ones).

The product of its digits is 4064256000, while the sum is 76.

The spelling of 51579454843768 in words is "fifty-one trillion, five hundred seventy-nine billion, four hundred fifty-four million, eight hundred forty-three thousand, seven hundred sixty-eight".