4447138047768 has 64 divisors (see below), whose sum is σ = 13303404424800. Its totient is φ = 1368350167680.

The previous prime is 4447138047763. The next prime is 4447138047787. The reversal of 4447138047768 is 8677408317444.

4447138047768 is a `hidden beast` number, since 4 + 4 + 4 + 71 + 38 + 0 + 477 + 68 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4447138047763) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 791866503 + ... + 791872118.

Almost surely, 2^{4447138047768} is an apocalyptic number.

It is an amenable number.

4447138047768 is an abundant number, since it is smaller than the sum of its proper divisors (8856266377032).

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

4447138047768 is a wasteful number, since it uses less digits than its factorization.

4447138047768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583738649 (or 1583738639 counting only the distinct ones).

The product of its (nonzero) digits is 101154816, while the sum is 63.

The spelling of 4447138047768 in words is "four trillion, four hundred forty-seven billion, one hundred thirty-eight million, forty-seven thousand, seven hundred sixty-eight".