51166787927579 has 8 divisors (see below), whose sum is σ = 53890416218880. Its totient is φ = 48484741747816.

The previous prime is 51166787927561. The next prime is 51166787927599. The reversal of 51166787927579 is 97572978766115.

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

It is a cyclic number.

It is not a de Polignac number, because 51166787927579 - 2⁸ = 51166787927323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51166787927599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10395525359 + ... + 10395530280.

It is an arithmetic number, because the mean of its divisors is an integer number (6736302027360).

Almost surely, 2^{51166787927579} is an apocalyptic number.

51166787927579 is a deficient number, since it is larger than the sum of its proper divisors (2723628291301).

51166787927579 is a wasteful number, since it uses less digits than its factorization.

51166787927579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20791055769.

The product of its digits is 2800526400, while the sum is 80.

The spelling of 51166787927579 in words is "fifty-one trillion, one hundred sixty-six billion, seven hundred eighty-seven million, nine hundred twenty-seven thousand, five hundred seventy-nine".