51875318667 has 8 divisors (see below), whose sum is σ = 69183341200. Its totient is φ = 34575420960.

The previous prime is 51875318633. The next prime is 51875318683. The reversal of 51875318667 is 76681357815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51875318667 - 2¹⁹ = 51874794379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51875318867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016292 + ... + 2041857.

It is an arithmetic number, because the mean of its divisors is an integer number (8647917650).

Almost surely, 2^51875318667 is an apocalyptic number.

51875318667 is a deficient number, since it is larger than the sum of its proper divisors (17308022533).

51875318667 is a wasteful number, since it uses less digits than its factorization.

51875318667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062413.

The product of its digits is 8467200, while the sum is 57.

The spelling of 51875318667 in words is "fifty-one billion, eight hundred seventy-five million, three hundred eighteen thousand, six hundred sixty-seven".