27217810061 has 16 divisors (see below), whose sum is σ = 31571749440. Its totient is φ = 23248270080.

The previous prime is 27217810003. The next prime is 27217810073. The reversal of 27217810061 is 16001871272.

It is a cyclic number.

It is not a de Polignac number, because 27217810061 - 2²² = 27213615757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27217810091) 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, 1270700 + ... + 1291941.

It is an arithmetic number, because the mean of its divisors is an integer number (1973234340).

Almost surely, 2^27217810061 is an apocalyptic number.

It is an amenable number.

27217810061 is a deficient number, since it is larger than the sum of its proper divisors (4353939379).

27217810061 is a wasteful number, since it uses less digits than its factorization.

27217810061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562716.

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 27217810061 in words is "twenty-seven billion, two hundred seventeen million, eight hundred ten thousand, sixty-one".