21828320283 has 32 divisors (see below), whose sum is σ = 36645345792. Its totient is φ = 11227104000.

The previous prime is 21828320281. The next prime is 21828320317. The reversal of 21828320283 is 38202382812.

It is not a de Polignac number, because 21828320283 - 2¹ = 21828320281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21828320281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444466 + ... + 491127.

It is an arithmetic number, because the mean of its divisors is an integer number (1145167056).

Almost surely, 2^21828320283 is an apocalyptic number.

21828320283 is a deficient number, since it is larger than the sum of its proper divisors (14817025509).

21828320283 is a wasteful number, since it uses less digits than its factorization.

21828320283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935715.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 21828320283 in words is "twenty-one billion, eight hundred twenty-eight million, three hundred twenty thousand, two hundred eighty-three".