6816637386143 has 8 divisors (see below), whose sum is σ = 7363172342736. Its totient is φ = 6273270748800.

The previous prime is 6816637386037. The next prime is 6816637386263. The reversal of 6816637386143 is 3416837366186.

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 6816637386143 - 2²² = 6816633191839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6816637386943) 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, 792075338 + ... + 792083943.

It is an arithmetic number, because the mean of its divisors is an integer number (920396542842).

Almost surely, 2^{6816637386143} is an apocalyptic number.

6816637386143 is a deficient number, since it is larger than the sum of its proper divisors (546534956593).

6816637386143 is a wasteful number, since it uses less digits than its factorization.

6816637386143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584159625.

The product of its digits is 62705664, while the sum is 62.

The spelling of 6816637386143 in words is "six trillion, eight hundred sixteen billion, six hundred thirty-seven million, three hundred eighty-six thousand, one hundred forty-three".