4044154123013 has 4 divisors (see below), whose sum is σ = 4044163496460. Its totient is φ = 4044144749568.

The previous prime is 4044154123007. The next prime is 4044154123027. The reversal of 4044154123013 is 3103214514404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2667152792164 + 1377001330849 = 1633142^2 + 1173457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4044154123013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044154123073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4006658 + ... + 4913411.

It is an arithmetic number, because the mean of its divisors is an integer number (1011040874115).

Almost surely, 2^{4044154123013} is an apocalyptic number.

It is an amenable number.

4044154123013 is a deficient number, since it is larger than the sum of its proper divisors (9373447).

4044154123013 is an equidigital number, since it uses as much as digits as its factorization.

4044154123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373446.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 4044154123013 its reverse (3103214514404), we get a palindrome (7147368637417).

The spelling of 4044154123013 in words is "four trillion, forty-four billion, one hundred fifty-four million, one hundred twenty-three thousand, thirteen".