11573906263 has 2 divisors, whose sum is σ = 11573906264. Its totient is φ = 11573906262.

The previous prime is 11573906261. The next prime is 11573906287. The reversal of 11573906263 is 36260937511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11573906263 - 2¹ = 11573906261 is a prime.

Together with 11573906261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11573906261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786953131 + 5786953132.

It is an arithmetic number, because the mean of its divisors is an integer number (5786953132).

Almost surely, 2^11573906263 is an apocalyptic number.

11573906263 is a deficient number, since it is larger than the sum of its proper divisors (1).

11573906263 is an equidigital number, since it uses as much as digits as its factorization.

11573906263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 11573906263 in words is "eleven billion, five hundred seventy-three million, nine hundred six thousand, two hundred sixty-three".