27698845441 has 2 divisors, whose sum is σ = 27698845442. Its totient is φ = 27698845440.

The previous prime is 27698845333. The next prime is 27698845459. The reversal of 27698845441 is 14454889672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27609145600 + 89699841 = 166160^2 + 9471^2 .

It is a cyclic number.

It is not a de Polignac number, because 27698845441 - 2²⁵ = 27665291009 is a prime.

It is not a weakly prime, because it can be changed into another prime (27698845481) 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, 13849422720 + 13849422721.

It is an arithmetic number, because the mean of its divisors is an integer number (13849422721).

Almost surely, 2^27698845441 is an apocalyptic number.

It is an amenable number.

27698845441 is a deficient number, since it is larger than the sum of its proper divisors (1).

27698845441 is an equidigital number, since it uses as much as digits as its factorization.

27698845441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15482880, while the sum is 58.

The spelling of 27698845441 in words is "twenty-seven billion, six hundred ninety-eight million, eight hundred forty-five thousand, four hundred forty-one".