27625441469 has 2 divisors, whose sum is σ = 27625441470. Its totient is φ = 27625441468.

The previous prime is 27625441433. The next prime is 27625441471. The reversal of 27625441469 is 96414452672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25858248025 + 1767193444 = 160805^2 + 42038^2 .

It is a cyclic number.

It is not a de Polignac number, because 27625441469 - 2⁸ = 27625441213 is a prime.

It is a super-2 number, since 2×27625441469² (a number of 22 digits) contains 22 as substring.

Together with 27625441471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27625441409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13812720734 + 13812720735.

It is an arithmetic number, because the mean of its divisors is an integer number (13812720735).

Almost surely, 2^27625441469 is an apocalyptic number.

It is an amenable number.

27625441469 is a deficient number, since it is larger than the sum of its proper divisors (1).

27625441469 is an equidigital number, since it uses as much as digits as its factorization.

27625441469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 27625441469 in words is "twenty-seven billion, six hundred twenty-five million, four hundred forty-one thousand, four hundred sixty-nine".