2173849618 has 8 divisors (see below), whose sum is σ = 3262977648. Its totient is φ = 1086190404.

The previous prime is 2173849609. The next prime is 2173849621. The reversal of 2173849618 is 8169483712.

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, 363496 + ... + 369427.

It is an arithmetic number, because the mean of its divisors is an integer number (407872206).

Almost surely, 2^2173849618 is an apocalyptic number.

2173849618 is a deficient number, since it is larger than the sum of its proper divisors (1089128030).

2173849618 is a wasteful number, since it uses less digits than its factorization.

2173849618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734408.

The product of its digits is 580608, while the sum is 49.

The square root of 2173849618 is about 46624.5602445750. The cubic root of 2173849618 is about 1295.4177168982.

The spelling of 2173849618 in words is "two billion, one hundred seventy-three million, eight hundred forty-nine thousand, six hundred eighteen".