4909540545 has 192 divisors, whose sum is σ = 11236861440. Its totient is φ = 2014419456.

The previous prime is 4909540501. The next prime is 4909540547. The reversal of 4909540545 is 5450459094.

It is not a de Polignac number, because 4909540545 - 2⁶ = 4909540481 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4909540545.

It is not an unprimeable number, because it can be changed into a prime (4909540547) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3181044 + ... + 3182586.

It is an arithmetic number, because the mean of its divisors is an integer number (58525320).

Almost surely, 2^4909540545 is an apocalyptic number.

4909540545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4909540545 is an abundant number, since it is smaller than the sum of its proper divisors (6327320895).

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

4909540545 is a wasteful number, since it uses less digits than its factorization.

4909540545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 4909540545 is about 70068.1136109714. The cubic root of 4909540545 is about 1699.6008918914.

The spelling of 4909540545 in words is "four billion, nine hundred nine million, five hundred forty thousand, five hundred forty-five".