481789618 has 8 divisors (see below), whose sum is σ = 722778012. Its totient is φ = 240863616.

The previous prime is 481789577. The next prime is 481789643. The reversal of 481789618 is 816987184.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 301612689 + 180176929 = 17367^2 + 13423^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19546 + ... + 36682.

Almost surely, 2^481789618 is an apocalyptic number.

481789618 is a deficient number, since it is larger than the sum of its proper divisors (240988394).

481789618 is a wasteful number, since it uses less digits than its factorization.

481789618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31196.

The product of its digits is 774144, while the sum is 52.

The square root of 481789618 is about 21949.7065584030. The cubic root of 481789618 is about 783.9453932968.

The spelling of 481789618 in words is "four hundred eighty-one million, seven hundred eighty-nine thousand, six hundred eighteen".