21484671467 has 12 divisors (see below), whose sum is σ = 25273191240. Its totient is φ = 18208514016.

The previous prime is 21484671421. The next prime is 21484671487. The reversal of 21484671467 is 76417648412.

It is not a de Polignac number, because 21484671467 - 2¹⁰ = 21484670443 is a prime.

It is a super-2 number, since 2×21484671467² (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 (21484671487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2458913 + ... + 2467634.

It is an arithmetic number, because the mean of its divisors is an integer number (2106099270).

Almost surely, 2^21484671467 is an apocalyptic number.

21484671467 is a deficient number, since it is larger than the sum of its proper divisors (3788519773).

21484671467 is an equidigital number, since it uses as much as digits as its factorization.

21484671467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926650 (or 4926643 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The spelling of 21484671467 in words is "twenty-one billion, four hundred eighty-four million, six hundred seventy-one thousand, four hundred sixty-seven".