11551726463 has 4 divisors (see below), whose sum is σ = 11556257328. Its totient is φ = 11547195600.

The previous prime is 11551726387. The next prime is 11551726489. The reversal of 11551726463 is 36462715511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36462715511 = 23 ⋅1585335457.

It is a cyclic number.

It is not a de Polignac number, because 11551726463 - 2¹⁰ = 11551725439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11551726463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551726493) 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, 2261606 + ... + 2266707.

It is an arithmetic number, because the mean of its divisors is an integer number (2889064332).

Almost surely, 2^11551726463 is an apocalyptic number.

11551726463 is a deficient number, since it is larger than the sum of its proper divisors (4530865).

11551726463 is an equidigital number, since it uses as much as digits as its factorization.

11551726463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530864.

The product of its digits is 151200, while the sum is 41.

The spelling of 11551726463 in words is "eleven billion, five hundred fifty-one million, seven hundred twenty-six thousand, four hundred sixty-three".