28062615361 has 27 divisors (see below), whose sum is σ = 31366739817. Its totient is φ = 25087645440.

The previous prime is 28062615349. The next prime is 28062615401. The reversal of 28062615361 is 16351626082.

The square root of 28062615361 is 167519.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1915725361 + 26146890000 = 43769^2 + 161700^2 .

It is not a de Polignac number, because 28062615361 - 2⁹ = 28062614849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28062615311) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 178742695 + ... + 178742851.

Almost surely, 2^28062615361 is an apocalyptic number.

28062615361 is the 167519-th square number.

28062615361 is the 83760-th centered octagonal number.

It is an amenable number.

28062615361 is a deficient number, since it is larger than the sum of its proper divisors (3304124456).

28062615361 is an frugal number, since it uses more digits than its factorization.

28062615361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 28062615361 in words is "twenty-eight billion, sixty-two million, six hundred fifteen thousand, three hundred sixty-one".