11726172959 has 2 divisors, whose sum is σ = 11726172960. Its totient is φ = 11726172958.

The previous prime is 11726172877. The next prime is 11726173009. The reversal of 11726172959 is 95927162711.

It is an a-pointer prime, because the next prime (11726173009) can be obtained adding 11726172959 to its sum of digits (50).

It is a strong prime.

It is an emirp because it is prime and its reverse (95927162711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11726172959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11726174959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5863086479 + 5863086480.

It is an arithmetic number, because the mean of its divisors is an integer number (5863086480).

Almost surely, 2^11726172959 is an apocalyptic number.

11726172959 is a deficient number, since it is larger than the sum of its proper divisors (1).

11726172959 is an equidigital number, since it uses as much as digits as its factorization.

11726172959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 50.

The spelling of 11726172959 in words is "eleven billion, seven hundred twenty-six million, one hundred seventy-two thousand, nine hundred fifty-nine".