384534412572640 has 144 divisors (see below), whose sum is σ = 1030769559469440. Its totient is φ = 135320027673600.

The previous prime is 384534412572613. The next prime is 384534412572647. The reversal of 384534412572640 is 46275214435483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384534412572647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319759755 + ... + 320960074.

It is an arithmetic number, because the mean of its divisors is an integer number (7158121940760).

Almost surely, 2^{384534412572640} is an apocalyptic number.

It is an amenable number.

384534412572640 is an abundant number, since it is smaller than the sum of its proper divisors (646235146896800).

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

384534412572640 is a wasteful number, since it uses less digits than its factorization.

384534412572640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640719897 (or 640719878 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 58.

The spelling of 384534412572640 in words is "three hundred eighty-four trillion, five hundred thirty-four billion, four hundred twelve million, five hundred seventy-two thousand, six hundred forty".