21441913967 has 8 divisors (see below), whose sum is σ = 22375857120. Its totient is φ = 20508111360.

The previous prime is 21441913943. The next prime is 21441914041. The reversal of 21441913967 is 76931914412.

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

It is a cyclic number.

It is not a de Polignac number, because 21441913967 - 2⁶ = 21441913903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441913937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382259 + ... + 434747.

It is an arithmetic number, because the mean of its divisors is an integer number (2796982140).

Almost surely, 2^21441913967 is an apocalyptic number.

21441913967 is a deficient number, since it is larger than the sum of its proper divisors (933943153).

21441913967 is a wasteful number, since it uses less digits than its factorization.

21441913967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70273.

The product of its digits is 326592, while the sum is 47.

The spelling of 21441913967 in words is "twenty-one billion, four hundred forty-one million, nine hundred thirteen thousand, nine hundred sixty-seven".