4549981815528 has 32 divisors (see below), whose sum is σ = 11376405711360. Its totient is φ = 1516467115520.

The previous prime is 4549981815523. The next prime is 4549981815559. The reversal of 4549981815528 is 8255181899454.

It is not an unprimeable number, because it can be changed into a prime (4549981815523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11901000 + ... + 12277367.

It is an arithmetic number, because the mean of its divisors is an integer number (355512678480).

Almost surely, 2^{4549981815528} is an apocalyptic number.

It is an amenable number.

4549981815528 is an abundant number, since it is smaller than the sum of its proper divisors (6826423895832).

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

4549981815528 is a wasteful number, since it uses less digits than its factorization.

4549981815528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24186217 (or 24186213 counting only the distinct ones).

The product of its digits is 165888000, while the sum is 69.

The spelling of 4549981815528 in words is "four trillion, five hundred forty-nine billion, nine hundred eighty-one million, eight hundred fifteen thousand, five hundred twenty-eight".