21467017411 has 4 divisors (see below), whose sum is σ = 24533734192. Its totient is φ = 18400300632.

The previous prime is 21467017381. The next prime is 21467017433. The reversal of 21467017411 is 11471076412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21467017411 - 2⁷ = 21467017283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21467017441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533358380 + ... + 1533358393.

It is an arithmetic number, because the mean of its divisors is an integer number (6133433548).

Almost surely, 2^21467017411 is an apocalyptic number.

21467017411 is a deficient number, since it is larger than the sum of its proper divisors (3066716781).

21467017411 is an equidigital number, since it uses as much as digits as its factorization.

21467017411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066716780.

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 21467017411 in words is "twenty-one billion, four hundred sixty-seven million, seventeen thousand, four hundred eleven".