11726460486561 has 4 divisors (see below), whose sum is σ = 15635280648752. Its totient is φ = 7817640324372.

The previous prime is 11726460486523. The next prime is 11726460486607. The reversal of 11726460486561 is 16568406462711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11726460486561 - 2²⁶ = 11726393377697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11726460486361) 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, 1954410081091 + ... + 1954410081096.

It is an arithmetic number, because the mean of its divisors is an integer number (3908820162188).

Almost surely, 2^{11726460486561} is an apocalyptic number.

It is an amenable number.

11726460486561 is a deficient number, since it is larger than the sum of its proper divisors (3908820162191).

11726460486561 is an equidigital number, since it uses as much as digits as its factorization.

11726460486561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908820162190.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 11726460486561 in words is "eleven trillion, seven hundred twenty-six billion, four hundred sixty million, four hundred eighty-six thousand, five hundred sixty-one".