51637481173 has 8 divisors (see below), whose sum is σ = 54357433920. Its totient is φ = 48917747520.

The previous prime is 51637481153. The next prime is 51637481183. The reversal of 51637481173 is 37118473615.

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

It is a cyclic number.

It is not a de Polignac number, because 51637481173 - 2¹³ = 51637472981 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 (51637481123) 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 7 ways as a sum of consecutive naturals, for example, 686061 + ... + 757597.

It is an arithmetic number, because the mean of its divisors is an integer number (6794679240).

Almost surely, 2^51637481173 is an apocalyptic number.

It is an amenable number.

51637481173 is a deficient number, since it is larger than the sum of its proper divisors (2719952747).

51637481173 is a wasteful number, since it uses less digits than its factorization.

51637481173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109547.

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

The spelling of 51637481173 in words is "fifty-one billion, six hundred thirty-seven million, four hundred eighty-one thousand, one hundred seventy-three".