21223626047 has 8 divisors (see below), whose sum is σ = 24200696016. Its totient is φ = 18438625152.

The previous prime is 21223626041. The next prime is 21223626059. The reversal of 21223626047 is 74062632212.

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 21223626047 - 2¹⁰ = 21223625023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21223625998 and 21223626016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223626041) 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, 48017033 + ... + 48017474.

It is an arithmetic number, because the mean of its divisors is an integer number (3025087002).

Almost surely, 2^21223626047 is an apocalyptic number.

21223626047 is a deficient number, since it is larger than the sum of its proper divisors (2977069969).

21223626047 is a wasteful number, since it uses less digits than its factorization.

21223626047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96034537.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 21223626047 in words is "twenty-one billion, two hundred twenty-three million, six hundred twenty-six thousand, forty-seven".