21869395282 has 8 divisors (see below), whose sum is σ = 37490391936. Its totient is φ = 9372597972.

The previous prime is 21869395277. The next prime is 21869395283. The reversal of 21869395282 is 28259396812.

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

It is not an unprimeable number, because it can be changed into a prime (21869395283) 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, 781049818 + ... + 781049845.

It is an arithmetic number, because the mean of its divisors is an integer number (4686298992).

Almost surely, 2^21869395282 is an apocalyptic number.

21869395282 is a deficient number, since it is larger than the sum of its proper divisors (15620996654).

21869395282 is a wasteful number, since it uses less digits than its factorization.

21869395282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562099672.

The product of its digits is 3732480, while the sum is 55.

The spelling of 21869395282 in words is "twenty-one billion, eight hundred sixty-nine million, three hundred ninety-five thousand, two hundred eighty-two".