27188426101 has 2 divisors, whose sum is σ = 27188426102. Its totient is φ = 27188426100.

The previous prime is 27188426081. The next prime is 27188426123. The reversal of 27188426101 is 10162488172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21355438225 + 5832987876 = 146135^2 + 76374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27188426101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27188426131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13594213050 + 13594213051.

It is an arithmetic number, because the mean of its divisors is an integer number (13594213051).

Almost surely, 2^27188426101 is an apocalyptic number.

It is an amenable number.

27188426101 is a deficient number, since it is larger than the sum of its proper divisors (1).

27188426101 is an equidigital number, since it uses as much as digits as its factorization.

27188426101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 27188426101 in words is "twenty-seven billion, one hundred eighty-eight million, four hundred twenty-six thousand, one hundred one".