27721106285 has 16 divisors (see below), whose sum is σ = 34850929152. Its totient is φ = 21141172800.

The previous prime is 27721106269. The next prime is 27721106311. The reversal of 27721106285 is 58260112772.

It is not a de Polignac number, because 27721106285 - 2⁴ = 27721106269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1324286 + ... + 1345055.

It is an arithmetic number, because the mean of its divisors is an integer number (2178183072).

Almost surely, 2^27721106285 is an apocalyptic number.

It is an amenable number.

27721106285 is a deficient number, since it is larger than the sum of its proper divisors (7129822867).

27721106285 is a wasteful number, since it uses less digits than its factorization.

27721106285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669444.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 27721106285 in words is "twenty-seven billion, seven hundred twenty-one million, one hundred six thousand, two hundred eighty-five".