51804247873 has 8 divisors (see below), whose sum is σ = 59206361600. Its totient is φ = 44402510880.

The previous prime is 51804247829. The next prime is 51804247903. The reversal of 51804247873 is 37874240815.

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

It is not a de Polignac number, because 51804247873 - 2¹⁷ = 51804116801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51804242873) 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, 324688 + ... + 457198.

It is an arithmetic number, because the mean of its divisors is an integer number (7400795200).

Almost surely, 2^51804247873 is an apocalyptic number.

It is an amenable number.

51804247873 is a deficient number, since it is larger than the sum of its proper divisors (7402113727).

51804247873 is a wasteful number, since it uses less digits than its factorization.

51804247873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188367.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 51804247873 in words is "fifty-one billion, eight hundred four million, two hundred forty-seven thousand, eight hundred seventy-three".