11173694901649 has 8 divisors (see below), whose sum is σ = 12796596610560. Its totient is φ = 9557458087776.

The previous prime is 11173694901647. The next prime is 11173694901683. The reversal of 11173694901649 is 94610949637111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11173694901649 - 2¹ = 11173694901647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11173694901647) 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 7 ways as a sum of consecutive naturals, for example, 1666220164 + ... + 1666226869.

It is an arithmetic number, because the mean of its divisors is an integer number (1599574576320).

Almost surely, 2^{11173694901649} is an apocalyptic number.

It is an amenable number.

11173694901649 is a deficient number, since it is larger than the sum of its proper divisors (1622901708911).

11173694901649 is an equidigital number, since it uses as much as digits as its factorization.

11173694901649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332447519.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 11173694901649 in words is "eleven trillion, one hundred seventy-three billion, six hundred ninety-four million, nine hundred one thousand, six hundred forty-nine".