51804748799 has 8 divisors (see below), whose sum is σ = 53481390720. Its totient is φ = 50128452000.

The previous prime is 51804748777. The next prime is 51804748847. The reversal of 51804748799 is 99784740815.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51804748799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51804748999) 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, 238217 + ... + 400445.

It is an arithmetic number, because the mean of its divisors is an integer number (6685173840).

Almost surely, 2^51804748799 is an apocalyptic number.

51804748799 is a deficient number, since it is larger than the sum of its proper divisors (1676641921).

51804748799 is a wasteful number, since it uses less digits than its factorization.

51804748799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172561.

The product of its (nonzero) digits is 20321280, while the sum is 62.

The spelling of 51804748799 in words is "fifty-one billion, eight hundred four million, seven hundred forty-eight thousand, seven hundred ninety-nine".