27216005268 has 24 divisors (see below), whose sum is σ = 64217543040. Its totient is φ = 8970068800.

The previous prime is 27216005237. The next prime is 27216005269. The reversal of 27216005268 is 86250061272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27216005269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12740508 + ... + 12742643.

It is an arithmetic number, because the mean of its divisors is an integer number (2675730960).

Almost surely, 2^27216005268 is an apocalyptic number.

It is an amenable number.

27216005268 is an abundant number, since it is smaller than the sum of its proper divisors (37001537772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27216005268 is a wasteful number, since it uses less digits than its factorization.

27216005268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483247 (or 25483245 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 27216005268 in words is "twenty-seven billion, two hundred sixteen million, five thousand, two hundred sixty-eight".