51673273218071 has 8 divisors (see below), whose sum is σ = 51988978821024. Its totient is φ = 51357642434560.

The previous prime is 51673273218053. The next prime is 51673273218079. The reversal of 51673273218071 is 17081237237615.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51673273218071 is a prime.

It is a super-2 number, since 2×51673273218071² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51673273218079) 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, 17319050 + ... + 20082231.

It is an arithmetic number, because the mean of its divisors is an integer number (6498622352628).

Almost surely, 2^{51673273218071} is an apocalyptic number.

51673273218071 is a deficient number, since it is larger than the sum of its proper divisors (315705602953).

51673273218071 is a wasteful number, since it uses less digits than its factorization.

51673273218071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37409721.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 51673273218071 in words is "fifty-one trillion, six hundred seventy-three billion, two hundred seventy-three million, two hundred eighteen thousand, seventy-one".