27145132739 has 2 divisors, whose sum is σ = 27145132740. Its totient is φ = 27145132738.

The previous prime is 27145132717. The next prime is 27145132747. The reversal of 27145132739 is 93723154172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27145132739 - 2¹² = 27145128643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27145132739.

It is not a weakly prime, because it can be changed into another prime (27145132759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572566369 + 13572566370.

It is an arithmetic number, because the mean of its divisors is an integer number (13572566370).

Almost surely, 2^27145132739 is an apocalyptic number.

27145132739 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145132739 is an equidigital number, since it uses as much as digits as its factorization.

27145132739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The spelling of 27145132739 in words is "twenty-seven billion, one hundred forty-five million, one hundred thirty-two thousand, seven hundred thirty-nine".