51718935485 has 16 divisors (see below), whose sum is σ = 71102265600. Its totient is φ = 35377693056.

The previous prime is 51718935473. The next prime is 51718935517. The reversal of 51718935485 is 58453981715.

It is a cyclic number.

It is not a de Polignac number, because 51718935485 - 2¹⁶ = 51718869949 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 51718935485.

It is a congruent number.

It is an unprimeable number.

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, 1792145 + ... + 1820774.

It is an arithmetic number, because the mean of its divisors is an integer number (4443891600).

Almost surely, 2^51718935485 is an apocalyptic number.

It is an amenable number.

51718935485 is a deficient number, since it is larger than the sum of its proper divisors (19383330115).

51718935485 is a wasteful number, since it uses less digits than its factorization.

51718935485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613340.

The product of its digits is 6048000, while the sum is 56.

The spelling of 51718935485 in words is "fifty-one billion, seven hundred eighteen million, nine hundred thirty-five thousand, four hundred eighty-five".