21477632626304 has 32 divisors (see below), whose sum is σ = 42845370585600. Its totient is φ = 10724284714752.

The previous prime is 21477632626291. The next prime is 21477632626309. The reversal of 21477632626304 is 40362623677412.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×21477632626304² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21477632626309) 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 3 ways as a sum of consecutive naturals, for example, 113433152 + ... + 113622335.

It is an arithmetic number, because the mean of its divisors is an integer number (1338917830800).

Almost surely, 2^{21477632626304} is an apocalyptic number.

It is an amenable number.

21477632626304 is a deficient number, since it is larger than the sum of its proper divisors (21367737959296).

21477632626304 is an equidigital number, since it uses as much as digits as its factorization.

21477632626304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227056240 (or 227056228 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 53.

The spelling of 21477632626304 in words is "twenty-one trillion, four hundred seventy-seven billion, six hundred thirty-two million, six hundred twenty-six thousand, three hundred four".