51157367167173 has 4 divisors (see below), whose sum is σ = 68209822889568. Its totient is φ = 34104911444780.

The previous prime is 51157367167157. The next prime is 51157367167211. The reversal of 51157367167173 is 37176176375115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51157367167173 - 2⁴ = 51157367167157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51157367160173) 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 3 ways as a sum of consecutive naturals, for example, 8526227861193 + ... + 8526227861198.

It is an arithmetic number, because the mean of its divisors is an integer number (17052455722392).

Almost surely, 2^{51157367167173} is an apocalyptic number.

It is an amenable number.

51157367167173 is a deficient number, since it is larger than the sum of its proper divisors (17052455722395).

51157367167173 is a wasteful number, since it uses less digits than its factorization.

51157367167173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17052455722394.

The product of its digits is 19448100, while the sum is 60.

The spelling of 51157367167173 in words is "fifty-one trillion, one hundred fifty-seven billion, three hundred sixty-seven million, one hundred sixty-seven thousand, one hundred seventy-three".