4557994618 has 4 divisors (see below), whose sum is σ = 6836991930. Its totient is φ = 2278997308.

The previous prime is 4557994613. The next prime is 4557994691. The reversal of 4557994618 is 8164997554.

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

It can be written as a sum of positive squares in only one way, i.e., 4301129889 + 256864729 = 65583^2 + 16027^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4557994613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139498653 + ... + 1139498656.

Almost surely, 2^4557994618 is an apocalyptic number.

4557994618 is a deficient number, since it is larger than the sum of its proper divisors (2278997312).

4557994618 is a wasteful number, since it uses less digits than its factorization.

4557994618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278997311.

The product of its digits is 10886400, while the sum is 58.

The square root of 4557994618 is about 67512.9218594485. The cubic root of 4557994618 is about 1658.0257433593.

The spelling of 4557994618 in words is "four billion, five hundred fifty-seven million, nine hundred ninety-four thousand, six hundred eighteen".