21489773480201 has 8 divisors (see below), whose sum is σ = 23635233681024. Its totient is φ = 19414656236880.

The previous prime is 21489773480099. The next prime is 21489773480207. The reversal of 21489773480201 is 10208437798412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21489773480201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21489773480207) 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, 17585738735 + ... + 17585739956.

It is an arithmetic number, because the mean of its divisors is an integer number (2954404210128).

Almost surely, 2^{21489773480201} is an apocalyptic number.

It is an amenable number.

21489773480201 is a deficient number, since it is larger than the sum of its proper divisors (2145460200823).

21489773480201 is a wasteful number, since it uses less digits than its factorization.

21489773480201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35171478751.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 21489773480201 in words is "twenty-one trillion, four hundred eighty-nine billion, seven hundred seventy-three million, four hundred eighty thousand, two hundred one".