11646044423 has 4 divisors (see below), whose sum is σ = 12541894008. Its totient is φ = 10750194840.

The previous prime is 11646044419. The next prime is 11646044441. The reversal of 11646044423 is 32444064611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11646044423 - 2² = 11646044419 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 (11646044023) 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, 447924773 + ... + 447924798.

It is an arithmetic number, because the mean of its divisors is an integer number (3135473502).

Almost surely, 2^11646044423 is an apocalyptic number.

11646044423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11646044423 is a deficient number, since it is larger than the sum of its proper divisors (895849585).

11646044423 is an equidigital number, since it uses as much as digits as its factorization.

11646044423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895849584.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 11646044423 in words is "eleven billion, six hundred forty-six million, forty-four thousand, four hundred twenty-three".