4347785388366 has 128 divisors (see below), whose sum is σ = 11642964480000. Its totient is φ = 1174838180832.

The previous prime is 4347785388319. The next prime is 4347785388389. The reversal of 4347785388366 is 6638835877434.

It is a happy number.

4347785388366 is a `hidden beast` number, since 4 + 3 + 4 + 7 + 7 + 8 + 538 + 83 + 6 + 6 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4347785388294 and 4347785388303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3700185 + ... + 4731483.

It is an arithmetic number, because the mean of its divisors is an integer number (90960660000).

Almost surely, 2^{4347785388366} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4347785388366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5821482240000).

4347785388366 is an abundant number, since it is smaller than the sum of its proper divisors (7295179091634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4347785388366 is a wasteful number, since it uses less digits than its factorization.

4347785388366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031923 (or 1031917 counting only the distinct ones).

The product of its digits is 1950842880, while the sum is 72.

The spelling of 4347785388366 in words is "four trillion, three hundred forty-seven billion, seven hundred eighty-five million, three hundred eighty-eight thousand, three hundred sixty-six".