51730702894 has 16 divisors (see below), whose sum is σ = 85141681632. Its totient is φ = 23425223328.

The previous prime is 51730702883. The next prime is 51730702921. The reversal of 51730702894 is 49820703715.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18768834 + ... + 18771589.

It is an arithmetic number, because the mean of its divisors is an integer number (5321355102).

Almost surely, 2^51730702894 is an apocalyptic number.

51730702894 is a deficient number, since it is larger than the sum of its proper divisors (33410978738).

51730702894 is a wasteful number, since it uses less digits than its factorization.

51730702894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37540491.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 51730702894 in words is "fifty-one billion, seven hundred thirty million, seven hundred two thousand, eight hundred ninety-four".