545779239489 has 144 divisors (see below), whose sum is σ = 962115952320. Its totient is φ = 303200236800.

The previous prime is 545779239487. The next prime is 545779239491. The reversal of 545779239489 is 984932977545.

545779239489 is a `hidden beast` number, since 5 + 4 + 5 + 77 + 92 + 394 + 89 = 666.

545779239489 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (545779239487) and next prime (545779239491).

It is not a de Polignac number, because 545779239489 - 2¹ = 545779239487 is a prime.

It is a super-2 number, since 2×545779239489² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545779239487) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 103032889 + ... + 103038185.

It is an arithmetic number, because the mean of its divisors is an integer number (6681360780).

Almost surely, 2^545779239489 is an apocalyptic number.

It is an amenable number.

545779239489 is a deficient number, since it is larger than the sum of its proper divisors (416336712831).

545779239489 is a wasteful number, since it uses less digits than its factorization.

545779239489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417 (or 5361 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 72.

The spelling of 545779239489 in words is "five hundred forty-five billion, seven hundred seventy-nine million, two hundred thirty-nine thousand, four hundred eighty-nine".