27502765145 has 12 divisors (see below), whose sum is σ = 34831759140. Its totient is φ = 20844199584.

The previous prime is 27502765139. The next prime is 27502765153. The reversal of 27502765145 is 54156720572.

It can be written as a sum of positive squares in 2 ways, for example, as 4190361289 + 23312403856 = 64733^2 + 152684^2 .

It is not a de Polignac number, because 27502765145 - 2⁸ = 27502764889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27502765096 and 27502765105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7616690 + ... + 7620299.

It is an arithmetic number, because the mean of its divisors is an integer number (2902646595).

Almost surely, 2^27502765145 is an apocalyptic number.

It is an amenable number.

27502765145 is a deficient number, since it is larger than the sum of its proper divisors (7328993995).

27502765145 is a wasteful number, since it uses less digits than its factorization.

27502765145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15237032 (or 15237013 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 27502765145 in words is "twenty-seven billion, five hundred two million, seven hundred sixty-five thousand, one hundred forty-five".