51804585579 has 8 divisors (see below), whose sum is σ = 69137399440. Its totient is φ = 34504081056.

The previous prime is 51804585563. The next prime is 51804585617. The reversal of 51804585579 is 97558540815.

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

It is not a de Polignac number, because 51804585579 - 2⁴ = 51804585563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51804585559) 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, 8073592 + ... + 8080005.

It is an arithmetic number, because the mean of its divisors is an integer number (8642174930).

Almost surely, 2^51804585579 is an apocalyptic number.

51804585579 is a deficient number, since it is larger than the sum of its proper divisors (17332813861).

51804585579 is a wasteful number, since it uses less digits than its factorization.

51804585579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16154669.

The product of its (nonzero) digits is 10080000, while the sum is 57.

The spelling of 51804585579 in words is "fifty-one billion, eight hundred four million, five hundred eighty-five thousand, five hundred seventy-nine".