21344733467 has 2 divisors, whose sum is σ = 21344733468. Its totient is φ = 21344733466.

The previous prime is 21344733427. The next prime is 21344733481. The reversal of 21344733467 is 76433744312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21344733467 - 2²² = 21340539163 is a prime.

It is not a weakly prime, because it can be changed into another prime (21344733427) 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 as a sum of consecutive naturals, namely, 10672366733 + 10672366734.

It is an arithmetic number, because the mean of its divisors is an integer number (10672366734).

Almost surely, 2^21344733467 is an apocalyptic number.

21344733467 is a deficient number, since it is larger than the sum of its proper divisors (1).

21344733467 is an equidigital number, since it uses as much as digits as its factorization.

21344733467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 44.

The spelling of 21344733467 in words is "twenty-one billion, three hundred forty-four million, seven hundred thirty-three thousand, four hundred sixty-seven".