21463576067 has 2 divisors, whose sum is σ = 21463576068. Its totient is φ = 21463576066.

The previous prime is 21463576061. The next prime is 21463576129. The reversal of 21463576067 is 76067536412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21463576067 - 2¹⁰ = 21463575043 is a prime.

It is not a weakly prime, because it can be changed into another prime (21463576061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10731788033 + 10731788034.

It is an arithmetic number, because the mean of its divisors is an integer number (10731788034).

Almost surely, 2^21463576067 is an apocalyptic number.

21463576067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21463576067 is an equidigital number, since it uses as much as digits as its factorization.

21463576067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 21463576067 in words is "twenty-one billion, four hundred sixty-three million, five hundred seventy-six thousand, sixty-seven".