4647805066638 has 32 divisors (see below), whose sum is σ = 10661631697920. Its totient is φ = 1499291956440.

The previous prime is 4647805066637. The next prime is 4647805066711. The reversal of 4647805066638 is 8366605087464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4647805066637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388231620 + ... + 1388234967.

It is an arithmetic number, because the mean of its divisors is an integer number (333175990560).

Almost surely, 2^{4647805066638} is an apocalyptic number.

4647805066638 is an abundant number, since it is smaller than the sum of its proper divisors (6013826631282).

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

4647805066638 is a wasteful number, since it uses less digits than its factorization.

4647805066638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776466629 (or 2776466623 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 4647805066638 in words is "four trillion, six hundred forty-seven billion, eight hundred five million, sixty-six thousand, six hundred thirty-eight".