2009608618 has 4 divisors (see below), whose sum is σ = 3014412930. Its totient is φ = 1004804308.

The previous prime is 2009608603. The next prime is 2009608633. The reversal of 2009608618 is 8168069002.

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 (2009608603) and next prime (2009608633).

It can be written as a sum of positive squares in only one way, i.e., 2001041289 + 8567329 = 44733^2 + 2927^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502402153 + ... + 502402156.

Almost surely, 2^2009608618 is an apocalyptic number.

2009608618 is a deficient number, since it is larger than the sum of its proper divisors (1004804312).

2009608618 is a wasteful number, since it uses less digits than its factorization.

2009608618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004804311.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2009608618 is about 44828.6584452401. The cubic root of 2009608618 is about 1261.9355106466.

The spelling of 2009608618 in words is "two billion, nine million, six hundred eight thousand, six hundred eighteen".