2261494618 has 8 divisors (see below), whose sum is σ = 3394849248. Its totient is φ = 1129878204.

The previous prime is 2261494607. The next prime is 2261494621. The reversal of 2261494618 is 8164941622.

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

It is a super-2 number, since 2×2261494618² = 10228715814485931848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431296 + ... + 436507.

It is an arithmetic number, because the mean of its divisors is an integer number (424356156).

Almost surely, 2^2261494618 is an apocalyptic number.

2261494618 is a deficient number, since it is larger than the sum of its proper divisors (1133354630).

2261494618 is a wasteful number, since it uses less digits than its factorization.

2261494618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869108.

The product of its digits is 165888, while the sum is 43.

The square root of 2261494618 is about 47555.1744608302. The cubic root of 2261494618 is about 1312.5983465294.

The spelling of 2261494618 in words is "two billion, two hundred sixty-one million, four hundred ninety-four thousand, six hundred eighteen".