21044950914239 has 8 divisors (see below), whose sum is σ = 24095342080128. Its totient is φ = 18005552150040.

The previous prime is 21044950914193. The next prime is 21044950914301. The reversal of 21044950914239 is 93241905944012.

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

It is a de Polignac number, because none of the positive numbers 2^k-21044950914239 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 (21044950916239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748096317 + ... + 2748103974.

It is an arithmetic number, because the mean of its divisors is an integer number (3011917760016).

Almost surely, 2^{21044950914239} is an apocalyptic number.

21044950914239 is a deficient number, since it is larger than the sum of its proper divisors (3050391165889).

21044950914239 is an equidigital number, since it uses as much as digits as its factorization.

21044950914239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496200845.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 21044950914239 in words is "twenty-one trillion, forty-four billion, nine hundred fifty million, nine hundred fourteen thousand, two hundred thirty-nine".