21882679384 has 32 divisors (see below), whose sum is σ = 41185486800. Its totient is φ = 10899965440.

The previous prime is 21882679331. The next prime is 21882679447. The reversal of 21882679384 is 48397628812.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366979 + ... + 2376205.

Almost surely, 2^21882679384 is an apocalyptic number.

It is an amenable number.

21882679384 is a deficient number, since it is larger than the sum of its proper divisors (19302807416).

21882679384 is a wasteful number, since it uses less digits than its factorization.

21882679384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10323 (or 10319 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 58.

The spelling of 21882679384 in words is "twenty-one billion, eight hundred eighty-two million, six hundred seventy-nine thousand, three hundred eighty-four".