12044775081 has 8 divisors (see below), whose sum is σ = 16066569664. Its totient is φ = 8026415280.

The previous prime is 12044775047. The next prime is 12044775091. The reversal of 12044775081 is 18057744021.

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

It is not a de Polignac number, because 12044775081 - 2⁷ = 12044774953 is a prime.

It is a super-2 number, since 2×12044775081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12044775031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850501 + ... + 864546.

It is an arithmetic number, because the mean of its divisors is an integer number (2008321208).

Almost surely, 2^12044775081 is an apocalyptic number.

It is an amenable number.

12044775081 is a deficient number, since it is larger than the sum of its proper divisors (4021794583).

12044775081 is a wasteful number, since it uses less digits than its factorization.

12044775081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717391.

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 12044775081 in words is "twelve billion, forty-four million, seven hundred seventy-five thousand, eighty-one".