27426537469 has 2 divisors, whose sum is σ = 27426537470. Its totient is φ = 27426537468.

The previous prime is 27426537451. The next prime is 27426537521. The reversal of 27426537469 is 96473562472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17937244900 + 9489292569 = 133930^2 + 97413^2 .

It is a cyclic number.

It is not a de Polignac number, because 27426537469 - 2³³ = 18836602877 is a prime.

It is a super-2 number, since 2×27426537469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27426537769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13713268734 + 13713268735.

It is an arithmetic number, because the mean of its divisors is an integer number (13713268735).

Almost surely, 2^27426537469 is an apocalyptic number.

It is an amenable number.

27426537469 is a deficient number, since it is larger than the sum of its proper divisors (1).

27426537469 is an equidigital number, since it uses as much as digits as its factorization.

27426537469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 55.

The spelling of 27426537469 in words is "twenty-seven billion, four hundred twenty-six million, five hundred thirty-seven thousand, four hundred sixty-nine".