27426443131 has 2 divisors, whose sum is σ = 27426443132. Its totient is φ = 27426443130.

The previous prime is 27426443129. The next prime is 27426443167. The reversal of 27426443131 is 13134462472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27426443131 - 2¹ = 27426443129 is a prime.

It is a super-2 number, since 2×27426443131² (a number of 22 digits) contains 22 as substring.

Together with 27426443129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27426443531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13713221565 + 13713221566.

It is an arithmetic number, because the mean of its divisors is an integer number (13713221566).

Almost surely, 2^27426443131 is an apocalyptic number.

27426443131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27426443131 is an equidigital number, since it uses as much as digits as its factorization.

27426443131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 37.

The spelling of 27426443131 in words is "twenty-seven billion, four hundred twenty-six million, four hundred forty-three thousand, one hundred thirty-one".