481975618 has 4 divisors (see below), whose sum is σ = 722963430. Its totient is φ = 240987808.

The previous prime is 481975609. The next prime is 481975633. The reversal of 481975618 is 816579184.

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., 457403769 + 24571849 = 21387^2 + 4957^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120493903 + ... + 120493906.

Almost surely, 2^481975618 is an apocalyptic number.

481975618 is a deficient number, since it is larger than the sum of its proper divisors (240987812).

481975618 is a wasteful number, since it uses less digits than its factorization.

481975618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240987811.

The product of its digits is 483840, while the sum is 49.

The square root of 481975618 is about 21953.9431082437. The cubic root of 481975618 is about 784.0462637995.

The spelling of 481975618 in words is "four hundred eighty-one million, nine hundred seventy-five thousand, six hundred eighteen".