21104773059 has 8 divisors (see below), whose sum is σ = 28326053632. Its totient is φ = 13976670600.

The previous prime is 21104773033. The next prime is 21104773073. The reversal of 21104773059 is 95037740112.

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

It is not a de Polignac number, because 21104773059 - 2⁹ = 21104772547 is a prime.

It is a super-2 number, since 2×21104773059² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21104773099) 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, 23293999 + ... + 23294904.

It is an arithmetic number, because the mean of its divisors is an integer number (3540756704).

Almost surely, 2^21104773059 is an apocalyptic number.

21104773059 is a deficient number, since it is larger than the sum of its proper divisors (7221280573).

21104773059 is a wasteful number, since it uses less digits than its factorization.

21104773059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46589057.

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 21104773059 in words is "twenty-one billion, one hundred four million, seven hundred seventy-three thousand, fifty-nine".