11528293729 has 2 divisors, whose sum is σ = 11528293730. Its totient is φ = 11528293728.

The previous prime is 11528293697. The next prime is 11528293739. The reversal of 11528293729 is 92739282511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9851555025 + 1676738704 = 99255^2 + 40948^2 .

It is a cyclic number.

It is not a de Polignac number, because 11528293729 - 2⁵ = 11528293697 is a prime.

It is not a weakly prime, because it can be changed into another prime (11528293739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5764146864 + 5764146865.

It is an arithmetic number, because the mean of its divisors is an integer number (5764146865).

Almost surely, 2^11528293729 is an apocalyptic number.

It is an amenable number.

11528293729 is a deficient number, since it is larger than the sum of its proper divisors (1).

11528293729 is an equidigital number, since it uses as much as digits as its factorization.

11528293729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The spelling of 11528293729 in words is "eleven billion, five hundred twenty-eight million, two hundred ninety-three thousand, seven hundred twenty-nine".