27502765139 has 2 divisors, whose sum is σ = 27502765140. Its totient is φ = 27502765138.

The previous prime is 27502765097. The next prime is 27502765153. The reversal of 27502765139 is 93156720572.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27502765139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27502765093 and 27502765102.

It is not a weakly prime, because it can be changed into another prime (27502765739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13751382569 + 13751382570.

It is an arithmetic number, because the mean of its divisors is an integer number (13751382570).

Almost surely, 2^27502765139 is an apocalyptic number.

27502765139 is a deficient number, since it is larger than the sum of its proper divisors (1).

27502765139 is an equidigital number, since it uses as much as digits as its factorization.

27502765139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 47.

The spelling of 27502765139 in words is "twenty-seven billion, five hundred two million, seven hundred sixty-five thousand, one hundred thirty-nine".