27429236213 has 2 divisors, whose sum is σ = 27429236214. Its totient is φ = 27429236212.

The previous prime is 27429236179. The next prime is 27429236251. The reversal of 27429236213 is 31263292472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17906989489 + 9522246724 = 133817^2 + 97582^2 .

It is a cyclic number.

It is not a de Polignac number, because 27429236213 - 2²² = 27425041909 is a prime.

It is a super-3 number, since 3×27429236213³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27429236413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13714618106 + 13714618107.

It is an arithmetic number, because the mean of its divisors is an integer number (13714618107).

Almost surely, 2^27429236213 is an apocalyptic number.

It is an amenable number.

27429236213 is a deficient number, since it is larger than the sum of its proper divisors (1).

27429236213 is an equidigital number, since it uses as much as digits as its factorization.

27429236213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 41.

The spelling of 27429236213 in words is "twenty-seven billion, four hundred twenty-nine million, two hundred thirty-six thousand, two hundred thirteen".