384749666749 has 16 divisors (see below), whose sum is σ = 442318412160. Its totient is φ = 327832591680.

The previous prime is 384749666747. The next prime is 384749666753. The reversal of 384749666749 is 947666947483.

It is a cyclic number.

It is not a de Polignac number, because 384749666749 - 2¹ = 384749666747 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 (384749666747) 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, 10555047 + ... + 10591435.

It is an arithmetic number, because the mean of its divisors is an integer number (27644900760).

Almost surely, 2^384749666749 is an apocalyptic number.

It is an amenable number.

384749666749 is a deficient number, since it is larger than the sum of its proper divisors (57568745411).

384749666749 is a wasteful number, since it uses less digits than its factorization.

384749666749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45300.

The product of its digits is 1316818944, while the sum is 73.

The spelling of 384749666749 in words is "three hundred eighty-four billion, seven hundred forty-nine million, six hundred sixty-six thousand, seven hundred forty-nine".