11806286251 has 4 divisors (see below), whose sum is σ = 12213399600. Its totient is φ = 11399172904.

The previous prime is 11806286231. The next prime is 11806286257. The reversal of 11806286251 is 15268260811.

It is a happy number.

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 11806286251 - 2¹³ = 11806278059 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11806286257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203556631 + ... + 203556688.

It is an arithmetic number, because the mean of its divisors is an integer number (3053349900).

Almost surely, 2^11806286251 is an apocalyptic number.

11806286251 is a deficient number, since it is larger than the sum of its proper divisors (407113349).

11806286251 is an equidigital number, since it uses as much as digits as its factorization.

11806286251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407113348.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 11806286251 in words is "eleven billion, eight hundred six million, two hundred eighty-six thousand, two hundred fifty-one".