21002318614618 has 8 divisors (see below), whose sum is σ = 34367430460320. Its totient is φ = 9546508461180.

The previous prime is 21002318614591. The next prime is 21002318614649. The reversal of 21002318614618 is 81641681320012.

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, 477325423038 + ... + 477325423081.

It is an arithmetic number, because the mean of its divisors is an integer number (4295928807540).

Almost surely, 2^{21002318614618} is an apocalyptic number.

21002318614618 is a deficient number, since it is larger than the sum of its proper divisors (13365111845702).

21002318614618 is a wasteful number, since it uses less digits than its factorization.

21002318614618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954650846132.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 21002318614618 in words is "twenty-one trillion, two billion, three hundred eighteen million, six hundred fourteen thousand, six hundred eighteen".