21879046682 has 32 divisors (see below), whose sum is σ = 36140152320. Its totient is φ = 9890899200.

The previous prime is 21879046681. The next prime is 21879046711. The reversal of 21879046682 is 28664097812.

It is not an unprimeable number, because it can be changed into a prime (21879046681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10694 + ... + 209457.

It is an arithmetic number, because the mean of its divisors is an integer number (1129379760).

Almost surely, 2^21879046682 is an apocalyptic number.

21879046682 is a deficient number, since it is larger than the sum of its proper divisors (14261105638).

21879046682 is a wasteful number, since it uses less digits than its factorization.

21879046682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220286.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 21879046682 in words is "twenty-one billion, eight hundred seventy-nine million, forty-six thousand, six hundred eighty-two".