27164650261 has 8 divisors (see below), whose sum is σ = 31253673600. Its totient is φ = 23127716688.

The previous prime is 27164650241. The next prime is 27164650267. The reversal of 27164650261 is 16205646172.

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 27164650261 - 2¹⁷ = 27164519189 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 (27164650267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13021321 + ... + 13023406.

It is an arithmetic number, because the mean of its divisors is an integer number (3906709200).

Almost surely, 2^27164650261 is an apocalyptic number.

It is an amenable number.

27164650261 is a deficient number, since it is larger than the sum of its proper divisors (4089023339).

27164650261 is a wasteful number, since it uses less digits than its factorization.

27164650261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26044883.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 27164650261 in words is "twenty-seven billion, one hundred sixty-four million, six hundred fifty thousand, two hundred sixty-one".