545868868545 has 144 divisors (see below), whose sum is σ = 1277367242112. Its totient is φ = 209404016640.

The previous prime is 545868868543. The next prime is 545868868553.

545868868545 is a `hidden beast` number, since 5 + 458 + 68 + 8 + 68 + 54 + 5 = 666.

545868868545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545868868545 - 2¹ = 545868868543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545868868543) 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, 119497 + ... + 1051673.

It is an arithmetic number, because the mean of its divisors is an integer number (8870605848).

Almost surely, 2^545868868545 is an apocalyptic number.

545868868545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545868868545 is an abundant number, since it is smaller than the sum of its proper divisors (731498373567).

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

545868868545 is a wasteful number, since it uses less digits than its factorization.

545868868545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932232 (or 932216 counting only the distinct ones).

The product of its digits is 1474560000, while the sum is 72.

The spelling of 545868868545 in words is "five hundred forty-five billion, eight hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred forty-five".