21836446706 has 16 divisors (see below), whose sum is σ = 33559098144. Its totient is φ = 10650727584.

The previous prime is 21836446699. The next prime is 21836446727. The reversal of 21836446706 is 60764463812.

It is a Curzon 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, 93635 + ... + 228998.

It is an arithmetic number, because the mean of its divisors is an integer number (2097443634).

Almost surely, 2^21836446706 is an apocalyptic number.

21836446706 is a deficient number, since it is larger than the sum of its proper divisors (11722651438).

21836446706 is a wasteful number, since it uses less digits than its factorization.

21836446706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323465.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 21836446706 in words is "twenty-one billion, eight hundred thirty-six million, four hundred forty-six thousand, seven hundred six".