471649618 has 16 divisors (see below), whose sum is σ = 772131456. Its totient is φ = 214291440.

The previous prime is 471649613. The next prime is 471649631. The reversal of 471649618 is 816946174.

It is not an unprimeable number, because it can be changed into a prime (471649613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79255 + ... + 84997.

It is an arithmetic number, because the mean of its divisors is an integer number (48258216).

Almost surely, 2^471649618 is an apocalyptic number.

471649618 is a deficient number, since it is larger than the sum of its proper divisors (300481838).

471649618 is a wasteful number, since it uses less digits than its factorization.

471649618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9489.

The product of its digits is 290304, while the sum is 46.

The square root of 471649618 is about 21717.4956659372. The cubic root of 471649618 is about 778.4065750485.

The spelling of 471649618 in words is "four hundred seventy-one million, six hundred forty-nine thousand, six hundred eighteen".