12650175729 has 15 divisors (see below), whose sum is σ = 18898688347. Its totient is φ = 8432775648.

The previous prime is 12650175721. The next prime is 12650175799. The reversal of 12650175729 is 92757105621.

The square root of 12650175729 is 112473.

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

12650175729 is a `hidden beast` number, since 1 + 2 + 6 + 501 + 75 + 72 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6759306225 + 5890869504 = 82215^2 + 76752^2 .

It is not a de Polignac number, because 12650175729 - 2³ = 12650175721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12650175721) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1006009 + ... + 1018505.

Almost surely, 2^12650175729 is an apocalyptic number.

12650175729 is the 112473-rd square number.

12650175729 is the 56237-th centered octagonal number.

It is an amenable number.

12650175729 is a deficient number, since it is larger than the sum of its proper divisors (6248512618).

12650175729 is an frugal number, since it uses more digits than its factorization.

12650175729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25006 (or 12500 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 12650175729 in words is "twelve billion, six hundred fifty million, one hundred seventy-five thousand, seven hundred twenty-nine".