51699303173 has 8 divisors (see below), whose sum is σ = 59277379392. Its totient is φ = 44169342336.

The previous prime is 51699303127. The next prime is 51699303191. The reversal of 51699303173 is 37130399615.

It is a happy number.

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

It is not a de Polignac number, because 51699303173 - 2¹⁶ = 51699237637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51699303113) 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, 12026540 + ... + 12030837.

It is an arithmetic number, because the mean of its divisors is an integer number (7409672424).

Almost surely, 2^51699303173 is an apocalyptic number.

It is an amenable number.

51699303173 is a deficient number, since it is larger than the sum of its proper divisors (7578076219).

51699303173 is a wasteful number, since it uses less digits than its factorization.

51699303173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24057691.

The product of its (nonzero) digits is 459270, while the sum is 47.

The spelling of 51699303173 in words is "fifty-one billion, six hundred ninety-nine million, three hundred three thousand, one hundred seventy-three".