21922632463 has 4 divisors (see below), whose sum is σ = 21924138600. Its totient is φ = 21921126328.

The previous prime is 21922632451. The next prime is 21922632491. The reversal of 21922632463 is 36423622912.

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

It is a cyclic number.

It is not a de Polignac number, because 21922632463 - 2²⁵ = 21889078031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21922632163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731020 + ... + 760417.

It is an arithmetic number, because the mean of its divisors is an integer number (5481034650).

Almost surely, 2^21922632463 is an apocalyptic number.

21922632463 is a deficient number, since it is larger than the sum of its proper divisors (1506137).

21922632463 is a wasteful number, since it uses less digits than its factorization.

21922632463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506136.

The product of its digits is 186624, while the sum is 40.

The spelling of 21922632463 in words is "twenty-one billion, nine hundred twenty-two million, six hundred thirty-two thousand, four hundred sixty-three".