27640452629 has 2 divisors, whose sum is σ = 27640452630. Its totient is φ = 27640452628.

The previous prime is 27640452617. The next prime is 27640452641. The reversal of 27640452629 is 92625404672.

It is a balanced prime because it is at equal distance from previous prime (27640452617) and next prime (27640452641).

It can be written as a sum of positive squares in only one way, i.e., 18515044900 + 9125407729 = 136070^2 + 95527^2 .

It is a cyclic number.

It is not a de Polignac number, because 27640452629 - 2¹² = 27640448533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27640452649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13820226314 + 13820226315.

It is an arithmetic number, because the mean of its divisors is an integer number (13820226315).

Almost surely, 2^27640452629 is an apocalyptic number.

It is an amenable number.

27640452629 is a deficient number, since it is larger than the sum of its proper divisors (1).

27640452629 is an equidigital number, since it uses as much as digits as its factorization.

27640452629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 27640452629 in words is "twenty-seven billion, six hundred forty million, four hundred fifty-two thousand, six hundred twenty-nine".