51801850057080 has 32 divisors (see below), whose sum is σ = 155405550171600. Its totient is φ = 13813826681856.

The previous prime is 51801850057063. The next prime is 51801850057099. The reversal of 51801850057080 is 8075005810815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215841041785 + ... + 215841042024.

Almost surely, 2^{51801850057080} is an apocalyptic number.

It is an amenable number.

51801850057080 is an abundant number, since it is smaller than the sum of its proper divisors (103603700114520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51801850057080 is a wasteful number, since it uses less digits than its factorization.

51801850057080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431682083823 (or 431682083819 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 48.

Adding to 51801850057080 its reverse (8075005810815), we get a palindrome (59876855867895).

The spelling of 51801850057080 in words is "fifty-one trillion, eight hundred one billion, eight hundred fifty million, fifty-seven thousand, eighty".