27511567051 has 2 divisors, whose sum is σ = 27511567052. Its totient is φ = 27511567050.

The previous prime is 27511567049. The next prime is 27511567067. The reversal of 27511567051 is 15076511572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27511567051 - 2¹ = 27511567049 is a prime.

Together with 27511567049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 27511566995 and 27511567013.

It is not a weakly prime, because it can be changed into another prime (27511567081) 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, 13755783525 + 13755783526.

It is an arithmetic number, because the mean of its divisors is an integer number (13755783526).

Almost surely, 2^27511567051 is an apocalyptic number.

27511567051 is a deficient number, since it is larger than the sum of its proper divisors (1).

27511567051 is an equidigital number, since it uses as much as digits as its factorization.

27511567051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 27511567051 in words is "twenty-seven billion, five hundred eleven million, five hundred sixty-seven thousand, fifty-one".