545545532878 has 4 divisors (see below), whose sum is σ = 818318299320. Its totient is φ = 272772766438.

The previous prime is 545545532863. The next prime is 545545532891. The reversal of 545545532878 is 878235545545.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136386383218 + ... + 136386383221.

It is an arithmetic number, because the mean of its divisors is an integer number (204579574830).

Almost surely, 2^545545532878 is an apocalyptic number.

545545532878 is a deficient number, since it is larger than the sum of its proper divisors (272772766442).

545545532878 is a wasteful number, since it uses less digits than its factorization.

545545532878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272772766441.

The product of its digits is 134400000, while the sum is 61.

The spelling of 545545532878 in words is "five hundred forty-five billion, five hundred forty-five million, five hundred thirty-two thousand, eight hundred seventy-eight".