51730284145873 has 8 divisors (see below), whose sum is σ = 54217221772608. Its totient is φ = 49263162755664.

The previous prime is 51730284145843. The next prime is 51730284145951. The reversal of 51730284145873 is 37854148203715.

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-51730284145873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51730284145843) 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, 4954053786 + ... + 4954064227.

It is an arithmetic number, because the mean of its divisors is an integer number (6777152721576).

Almost surely, 2^{51730284145873} is an apocalyptic number.

It is an amenable number.

51730284145873 is a deficient number, since it is larger than the sum of its proper divisors (2486937626735).

51730284145873 is a wasteful number, since it uses less digits than its factorization.

51730284145873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9908118263.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 51730284145873 in words is "fifty-one trillion, seven hundred thirty billion, two hundred eighty-four million, one hundred forty-five thousand, eight hundred seventy-three".