27156125011 has 2 divisors, whose sum is σ = 27156125012. Its totient is φ = 27156125010.

The previous prime is 27156124981. The next prime is 27156125053. The reversal of 27156125011 is 11052165172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27156125011 - 2⁵ = 27156124979 is a prime.

It is a super-2 number, since 2×27156125011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27156425011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13578062505 + 13578062506.

It is an arithmetic number, because the mean of its divisors is an integer number (13578062506).

Almost surely, 2^27156125011 is an apocalyptic number.

27156125011 is a deficient number, since it is larger than the sum of its proper divisors (1).

27156125011 is an equidigital number, since it uses as much as digits as its factorization.

27156125011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 31.

The spelling of 27156125011 in words is "twenty-seven billion, one hundred fifty-six million, one hundred twenty-five thousand, eleven".