51118171473 has 16 divisors (see below), whose sum is σ = 68433868800. Its totient is φ = 33940693584.

The previous prime is 51118171441. The next prime is 51118171477. The reversal of 51118171473 is 37417181115.

It is not a de Polignac number, because 51118171473 - 2⁵ = 51118171441 is a prime.

It is a super-2 number, since 2×51118171473² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51118171477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5552328 + ... + 5561526.

It is an arithmetic number, because the mean of its divisors is an integer number (4277116800).

Almost surely, 2^51118171473 is an apocalyptic number.

It is an amenable number.

51118171473 is a deficient number, since it is larger than the sum of its proper divisors (17315697327).

51118171473 is a wasteful number, since it uses less digits than its factorization.

51118171473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16508.

The product of its digits is 23520, while the sum is 39.

The spelling of 51118171473 in words is "fifty-one billion, one hundred eighteen million, one hundred seventy-one thousand, four hundred seventy-three".