21727550547706 has 32 divisors (see below), whose sum is σ = 33172891200000. Its totient is φ = 10671338950272.

The previous prime is 21727550547667. The next prime is 21727550547709. The reversal of 21727550547706 is 60774505572712.

It is not an unprimeable number, because it can be changed into a prime (21727550547709) 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, 410260180 + ... + 410313136.

It is an arithmetic number, because the mean of its divisors is an integer number (1036652850000).

Almost surely, 2^{21727550547706} is an apocalyptic number.

21727550547706 is a deficient number, since it is larger than the sum of its proper divisors (11445340652294).

21727550547706 is a wasteful number, since it uses less digits than its factorization.

21727550547706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66286.

The product of its (nonzero) digits is 28812000, while the sum is 58.

The spelling of 21727550547706 in words is "twenty-one trillion, seven hundred twenty-seven billion, five hundred fifty million, five hundred forty-seven thousand, seven hundred six".