11294800729 has 3 divisors (see below), whose sum is σ = 11294907007. Its totient is φ = 11294694452.

The previous prime is 11294800717. The next prime is 11294800733. The reversal of 11294800729 is 92700849211.

It is a happy number.

The square root of 11294800729 is 106277.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92700849211 = 50207 ⋅1846373.

It can be written as a sum of positive squares in only one way, i.e., 11294375625 + 425104 = 106275^2 + 652^2 .

It is not a de Polignac number, because 11294800729 - 2⁹ = 11294800217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11294800709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 53139 + ... + 159415.

Almost surely, 2^11294800729 is an apocalyptic number.

11294800729 is the 106277-th square number.

11294800729 is the 53139-th centered octagonal number.

It is an amenable number.

11294800729 is a deficient number, since it is larger than the sum of its proper divisors (106278).

11294800729 is an frugal number, since it uses more digits than its factorization.

11294800729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212554 (or 106277 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 11294800729 in words is "eleven billion, two hundred ninety-four million, eight hundred thousand, seven hundred twenty-nine".