4561599985898 has 4 divisors (see below), whose sum is σ = 6842399978850. Its totient is φ = 2280799992948.

The previous prime is 4561599985889. The next prime is 4561599985907. The reversal of 4561599985898 is 8985899951654.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (4561599985889) and next prime (4561599985907).

It can be written as a sum of positive squares in only one way, i.e., 2974924691209 + 1586675294689 = 1724797^2 + 1259633^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140399996473 + ... + 1140399996476.

Almost surely, 2^{4561599985898} is an apocalyptic number.

4561599985898 is a deficient number, since it is larger than the sum of its proper divisors (2280799992952).

4561599985898 is a wasteful number, since it uses less digits than its factorization.

4561599985898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280799992951.

The product of its digits is 10077696000, while the sum is 86.

The spelling of 4561599985898 in words is "four trillion, five hundred sixty-one billion, five hundred ninety-nine million, nine hundred eighty-five thousand, eight hundred ninety-eight".