51668573683388 has 12 divisors (see below), whose sum is σ = 90424987813440. Its totient is φ = 25832862879552.

The previous prime is 51668573683373. The next prime is 51668573683403. The reversal of 51668573683388 is 88338637586615.

It is an interprime number because it is at equal distance from previous prime (51668573683373) and next prime (51668573683403).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355908893 + ... + 356054036.

It is an arithmetic number, because the mean of its divisors is an integer number (7535415651120).

Almost surely, 2^{51668573683388} is an apocalyptic number.

It is an amenable number.

51668573683388 is a deficient number, since it is larger than the sum of its proper divisors (38756414130052).

51668573683388 is a wasteful number, since it uses less digits than its factorization.

51668573683388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711981076 (or 711981074 counting only the distinct ones).

The product of its digits is 4180377600, while the sum is 77.

The spelling of 51668573683388 in words is "fifty-one trillion, six hundred sixty-eight billion, five hundred seventy-three million, six hundred eighty-three thousand, three hundred eighty-eight".