51668870628371 has 8 divisors (see below), whose sum is σ = 52181906102784. Its totient is φ = 51157804580800.

The previous prime is 51668870628329. The next prime is 51668870628383. The reversal of 51668870628371 is 17382607886615.

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 51668870628371 - 2⁶ = 51668870628307 is a prime.

It is a super-2 number, since 2×51668870628371² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51668870628671) 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, 492303980 + ... + 492408921.

It is an arithmetic number, because the mean of its divisors is an integer number (6522738262848).

Almost surely, 2^{51668870628371} is an apocalyptic number.

51668870628371 is a deficient number, since it is larger than the sum of its proper divisors (513035474413).

51668870628371 is a wasteful number, since it uses less digits than its factorization.

51668870628371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984713421.

The product of its (nonzero) digits is 162570240, while the sum is 68.

The spelling of 51668870628371 in words is "fifty-one trillion, six hundred sixty-eight billion, eight hundred seventy million, six hundred twenty-eight thousand, three hundred seventy-one".