11261726623 has 4 divisors (see below), whose sum is σ = 12870544720. Its totient is φ = 9652908528.

The previous prime is 11261726573. The next prime is 11261726627. The reversal of 11261726623 is 32662716211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11261726623 - 2⁹ = 11261726111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11261726627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804409038 + ... + 804409051.

It is an arithmetic number, because the mean of its divisors is an integer number (3217636180).

Almost surely, 2^11261726623 is an apocalyptic number.

11261726623 is a deficient number, since it is larger than the sum of its proper divisors (1608818097).

11261726623 is an equidigital number, since it uses as much as digits as its factorization.

11261726623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608818096.

The product of its digits is 36288, while the sum is 37.

The spelling of 11261726623 in words is "eleven billion, two hundred sixty-one million, seven hundred twenty-six thousand, six hundred twenty-three".