51668573683389 has 32 divisors (see below), whose sum is σ = 77767752526464. Its totient is φ = 30299124280320.

The previous prime is 51668573683373. The next prime is 51668573683403. The reversal of 51668573683389 is 98338637586615.

It is not a de Polignac number, because 51668573683389 - 2⁴ = 51668573683373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51668573683339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375664432 + ... + 375801945.

It is an arithmetic number, because the mean of its divisors is an integer number (2430242266452).

Almost surely, 2^{51668573683389} is an apocalyptic number.

It is an amenable number.

51668573683389 is a deficient number, since it is larger than the sum of its proper divisors (26099178843075).

51668573683389 is a wasteful number, since it uses less digits than its factorization.

51668573683389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751466477.

The product of its digits is 4702924800, while the sum is 78.

The spelling of 51668573683389 in words is "fifty-one trillion, six hundred sixty-eight billion, five hundred seventy-three million, six hundred eighty-three thousand, three hundred eighty-nine".