4538422843515 has 128 divisors (see below), whose sum is σ = 9318607027200. Its totient is φ = 2072582277120.

The previous prime is 4538422843511. The next prime is 4538422843579. The reversal of 4538422843515 is 5153482248354.

4538422843515 is a `hidden beast` number, since 4 + 5 + 3 + 8 + 4 + 2 + 284 + 351 + 5 = 666.

It is not a de Polignac number, because 4538422843515 - 2² = 4538422843511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4538422843511) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4416307 + ... + 5346083.

It is an arithmetic number, because the mean of its divisors is an integer number (72801617400).

Almost surely, 2^{4538422843515} is an apocalyptic number.

4538422843515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4538422843515 is an abundant number, since it is smaller than the sum of its proper divisors (4780184183685).

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

4538422843515 is a wasteful number, since it uses less digits than its factorization.

4538422843515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929994 (or 929988 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 54.

The spelling of 4538422843515 in words is "four trillion, five hundred thirty-eight billion, four hundred twenty-two million, eight hundred forty-three thousand, five hundred fifteen".