11894272529 has 2 divisors, whose sum is σ = 11894272530. Its totient is φ = 11894272528.

The previous prime is 11894272499. The next prime is 11894272543. The reversal of 11894272529 is 92527249811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11826127504 + 68145025 = 108748^2 + 8255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11894272529 - 2¹⁶ = 11894206993 is a prime.

It is not a weakly prime, because it can be changed into another prime (11894272549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5947136264 + 5947136265.

It is an arithmetic number, because the mean of its divisors is an integer number (5947136265).

Almost surely, 2^11894272529 is an apocalyptic number.

It is an amenable number.

11894272529 is a deficient number, since it is larger than the sum of its proper divisors (1).

11894272529 is an equidigital number, since it uses as much as digits as its factorization.

11894272529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 50.

The spelling of 11894272529 in words is "eleven billion, eight hundred ninety-four million, two hundred seventy-two thousand, five hundred twenty-nine".