21846384659402 has 16 divisors (see below), whose sum is σ = 32996126577024. Its totient is φ = 10847717610000.

The previous prime is 21846384659399. The next prime is 21846384659419. The reversal of 21846384659402 is 20495648364812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9405374 + ... + 11495817.

It is an arithmetic number, because the mean of its divisors is an integer number (2062257911064).

Almost surely, 2^{21846384659402} is an apocalyptic number.

21846384659402 is a deficient number, since it is larger than the sum of its proper divisors (11149741917622).

21846384659402 is a wasteful number, since it uses less digits than its factorization.

21846384659402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20904805.

The product of its (nonzero) digits is 79626240, while the sum is 62.

The spelling of 21846384659402 in words is "twenty-one trillion, eight hundred forty-six billion, three hundred eighty-four million, six hundred fifty-nine thousand, four hundred two".