4557820878 has 24 divisors (see below), whose sum is σ = 10634915928. Its totient is φ = 1402406352.

The previous prime is 4557820847. The next prime is 4557820889. The reversal of 4557820878 is 8780287554.

4557820878 is a `hidden beast` number, since 4 + 557 + 8 + 2 + 0 + 87 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9738700 + ... + 9739167.

It is an arithmetic number, because the mean of its divisors is an integer number (443121497).

Almost surely, 2^4557820878 is an apocalyptic number.

4557820878 is an abundant number, since it is smaller than the sum of its proper divisors (6077095050).

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

4557820878 is a wasteful number, since it uses less digits than its factorization.

4557820878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19477888 (or 19477885 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 54.

The square root of 4557820878 is about 67511.6351305462. The cubic root of 4557820878 is about 1658.0046764152.

The spelling of 4557820878 in words is "four billion, five hundred fifty-seven million, eight hundred twenty thousand, eight hundred seventy-eight".