11671540410689 has 4 divisors (see below), whose sum is σ = 11671557268224. Its totient is φ = 11671523553156.

The previous prime is 11671540410631. The next prime is 11671540410707. The reversal of 11671540410689 is 98601404517611.

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 a cyclic number.

It is not a de Polignac number, because 11671540410689 - 2³² = 11667245443393 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 11671540410689.

It is not an unprimeable number, because it can be changed into a prime (11671540410289) 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, 7343657 + ... + 8790470.

It is an arithmetic number, because the mean of its divisors is an integer number (2917889317056).

Almost surely, 2^{11671540410689} is an apocalyptic number.

It is an amenable number.

11671540410689 is a deficient number, since it is larger than the sum of its proper divisors (16857535).

11671540410689 is an equidigital number, since it uses as much as digits as its factorization.

11671540410689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857534.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 11671540410689 in words is "eleven trillion, six hundred seventy-one billion, five hundred forty million, four hundred ten thousand, six hundred eighty-nine".