545523278489 has 24 divisors (see below), whose sum is σ = 662392041600. Its totient is φ = 440015740416.

The previous prime is 545523278483. The next prime is 545523278501. The reversal of 545523278489 is 984872325545.

It is a de Polignac number, because none of the positive numbers 2^k-545523278489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545523278483) 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, 15371237 + ... + 15406685.

It is an arithmetic number, because the mean of its divisors is an integer number (27599668400).

Almost surely, 2^545523278489 is an apocalyptic number.

It is an amenable number.

545523278489 is a deficient number, since it is larger than the sum of its proper divisors (116868763111).

545523278489 is a wasteful number, since it uses less digits than its factorization.

545523278489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43097 (or 43080 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 62.

The spelling of 545523278489 in words is "five hundred forty-five billion, five hundred twenty-three million, two hundred seventy-eight thousand, four hundred eighty-nine".