51173974671197 has 8 divisors (see below), whose sum is σ = 58484588855616. Its totient is φ = 43863372080352.

The previous prime is 51173974671181. The next prime is 51173974671217. The reversal of 51173974671197 is 79117647937115.

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 51173974671197 - 2⁴ = 51173974671181 is a prime.

It is a super-2 number, since 2×51173974671197² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51173974671497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11008958 + ... + 14951424.

It is an arithmetic number, because the mean of its divisors is an integer number (7310573606952).

Almost surely, 2^{51173974671197} is an apocalyptic number.

It is an amenable number.

51173974671197 is a deficient number, since it is larger than the sum of its proper divisors (7310614184419).

51173974671197 is a wasteful number, since it uses less digits than its factorization.

51173974671197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796787.

The product of its digits is 70013160, while the sum is 68.

The spelling of 51173974671197 in words is "fifty-one trillion, one hundred seventy-three billion, nine hundred seventy-four million, six hundred seventy-one thousand, one hundred ninety-seven".