11446323681 has 16 divisors (see below), whose sum is σ = 17150345856. Its totient is φ = 6737634816.

The previous prime is 11446323619. The next prime is 11446323683. The reversal of 11446323681 is 18632364411.

It is a happy number.

It is not a de Polignac number, because 11446323681 - 2¹¹ = 11446321633 is a prime.

It is a super-2 number, since 2×11446323681² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11446323683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6379440 + ... + 6381233.

It is an arithmetic number, because the mean of its divisors is an integer number (1071896616).

Almost surely, 2^11446323681 is an apocalyptic number.

It is an amenable number.

11446323681 is a deficient number, since it is larger than the sum of its proper divisors (5704022175).

11446323681 is a wasteful number, since it uses less digits than its factorization.

11446323681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12760712.

The product of its digits is 82944, while the sum is 39.

The spelling of 11446323681 in words is "eleven billion, four hundred forty-six million, three hundred twenty-three thousand, six hundred eighty-one".