545454878790 has 32 divisors (see below), whose sum is σ = 1309291950816. Its totient is φ = 145432385280.

The previous prime is 545454878777. The next prime is 545454878797. The reversal of 545454878790 is 97878454545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545454878797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190701 + ... + 1583880.

It is an arithmetic number, because the mean of its divisors is an integer number (40915373463).

Almost surely, 2^545454878790 is an apocalyptic number.

545454878790 is an abundant number, since it is smaller than the sum of its proper divisors (763837072026).

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

545454878790 is a wasteful number, since it uses less digits than its factorization.

545454878790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781144.

The product of its (nonzero) digits is 225792000, while the sum is 66.

The spelling of 545454878790 in words is "five hundred forty-five billion, four hundred fifty-four million, eight hundred seventy-eight thousand, seven hundred ninety".