4538615445 has 96 divisors (see below), whose sum is σ = 9880416000. Its totient is φ = 1915111296.

The previous prime is 4538615441. The next prime is 4538615479. The reversal of 4538615445 is 5445168354.

4538615445 is a `hidden beast` number, since 4 + 538 + 61 + 54 + 4 + 5 = 666.

It is not a de Polignac number, because 4538615445 - 2² = 4538615441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4538615445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538615441) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 189346 + ... + 211964.

It is an arithmetic number, because the mean of its divisors is an integer number (102921000).

Almost surely, 2^4538615445 is an apocalyptic number.

4538615445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4538615445 is an abundant number, since it is smaller than the sum of its proper divisors (5341800555).

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

4538615445 is a wasteful number, since it uses less digits than its factorization.

4538615445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22664 (or 22647 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 4538615445 is about 67369.2470271117. The cubic root of 4538615445 is about 1655.6726023019.

The spelling of 4538615445 in words is "four billion, five hundred thirty-eight million, six hundred fifteen thousand, four hundred forty-five".