21946088695418 has 8 divisors (see below), whose sum is σ = 34350399697248. Its totient is φ = 10495955463004.

The previous prime is 21946088695417. The next prime is 21946088695457. The reversal of 21946088695418 is 81459688064912.

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

It is not an unprimeable number, because it can be changed into a prime (21946088695417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238544442296 + ... + 238544442387.

It is an arithmetic number, because the mean of its divisors is an integer number (4293799962156).

Almost surely, 2^{21946088695418} is an apocalyptic number.

21946088695418 is a deficient number, since it is larger than the sum of its proper divisors (12404311001830).

21946088695418 is a wasteful number, since it uses less digits than its factorization.

21946088695418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477088884708.

The product of its (nonzero) digits is 238878720, while the sum is 71.

The spelling of 21946088695418 in words is "twenty-one trillion, nine hundred forty-six billion, eighty-eight million, six hundred ninety-five thousand, four hundred eighteen".