11347646671 has 4 divisors (see below), whose sum is σ = 11347905600. Its totient is φ = 11347387744.

The previous prime is 11347646657. The next prime is 11347646683. The reversal of 11347646671 is 17664674311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17664674311 = 5483 ⋅3221717.

It is a cyclic number.

It is not a de Polignac number, because 11347646671 - 2²¹ = 11345549519 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 (11347646641) 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, 45631 + ... + 157408.

It is an arithmetic number, because the mean of its divisors is an integer number (2836976400).

Almost surely, 2^11347646671 is an apocalyptic number.

11347646671 is a deficient number, since it is larger than the sum of its proper divisors (258929).

11347646671 is an equidigital number, since it uses as much as digits as its factorization.

11347646671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258928.

The product of its digits is 508032, while the sum is 46.

The spelling of 11347646671 in words is "eleven billion, three hundred forty-seven million, six hundred forty-six thousand, six hundred seventy-one".