21963348433 has 8 divisors (see below), whose sum is σ = 24897723200. Its totient is φ = 19206814608.

The previous prime is 21963348371. The next prime is 21963348443. The reversal of 21963348433 is 33484336912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21963348433 - 2¹³ = 21963340241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21963348443) 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 7 ways as a sum of consecutive naturals, for example, 44459973 + ... + 44460466.

It is an arithmetic number, because the mean of its divisors is an integer number (3112215400).

Almost surely, 2^21963348433 is an apocalyptic number.

It is an amenable number.

21963348433 is a deficient number, since it is larger than the sum of its proper divisors (2934374767).

21963348433 is a wasteful number, since it uses less digits than its factorization.

21963348433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88920471.

The product of its digits is 1119744, while the sum is 46.

The spelling of 21963348433 in words is "twenty-one billion, nine hundred sixty-three million, three hundred forty-eight thousand, four hundred thirty-three".