11557232693 has 2 divisors, whose sum is σ = 11557232694. Its totient is φ = 11557232692.

The previous prime is 11557232647. The next prime is 11557232711. The reversal of 11557232693 is 39623275511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8771820964 + 2785411729 = 93658^2 + 52777^2 .

It is a cyclic number.

It is not a de Polignac number, because 11557232693 - 2¹⁴ = 11557216309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11557232633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778616346 + 5778616347.

It is an arithmetic number, because the mean of its divisors is an integer number (5778616347).

Almost surely, 2^11557232693 is an apocalyptic number.

It is an amenable number.

11557232693 is a deficient number, since it is larger than the sum of its proper divisors (1).

11557232693 is an equidigital number, since it uses as much as digits as its factorization.

11557232693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 44.

The spelling of 11557232693 in words is "eleven billion, five hundred fifty-seven million, two hundred thirty-two thousand, six hundred ninety-three".