27012832261 has 8 divisors (see below), whose sum is σ = 28604435904. Its totient is φ = 25421519040.

The previous prime is 27012832219. The next prime is 27012832283. The reversal of 27012832261 is 16223821072.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27012832261 - 2¹¹ = 27012830213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27012832201) 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, 136056 + ... + 269326.

It is an arithmetic number, because the mean of its divisors is an integer number (3575554488).

Almost surely, 2^27012832261 is an apocalyptic number.

It is an amenable number.

27012832261 is a deficient number, since it is larger than the sum of its proper divisors (1591603643).

27012832261 is a wasteful number, since it uses less digits than its factorization.

27012832261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145211.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 27012832261 in words is "twenty-seven billion, twelve million, eight hundred thirty-two thousand, two hundred sixty-one".