27905275031 has 2 divisors, whose sum is σ = 27905275032. Its totient is φ = 27905275030.

The previous prime is 27905274997. The next prime is 27905275037. The reversal of 27905275031 is 13057250972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27905275031 - 2⁶ = 27905274967 is a prime.

It is a super-2 number, since 2×27905275031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27905275031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27905275037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13952637515 + 13952637516.

It is an arithmetic number, because the mean of its divisors is an integer number (13952637516).

Almost surely, 2^27905275031 is an apocalyptic number.

27905275031 is a deficient number, since it is larger than the sum of its proper divisors (1).

27905275031 is an equidigital number, since it uses as much as digits as its factorization.

27905275031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 41.

The spelling of 27905275031 in words is "twenty-seven billion, nine hundred five million, two hundred seventy-five thousand, thirty-one".