44012140013 has 4 divisors (see below), whose sum is σ = 44015395260. Its totient is φ = 44008884768.

The previous prime is 44012139973. The next prime is 44012140031. The reversal of 44012140013 is 31004121044.

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 34342761124 + 9669378889 = 185318^2 + 98333^2 .

It is a cyclic number.

It is not a de Polignac number, because 44012140013 - 2²⁴ = 43995362797 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 (44012140313) 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, 1607258 + ... + 1634411.

It is an arithmetic number, because the mean of its divisors is an integer number (11003848815).

Almost surely, 2^44012140013 is an apocalyptic number.

It is an amenable number.

44012140013 is a deficient number, since it is larger than the sum of its proper divisors (3255247).

44012140013 is a wasteful number, since it uses less digits than its factorization.

44012140013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255246.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 44012140013 its reverse (31004121044), we get a palindrome (75016261057).

The spelling of 44012140013 in words is "forty-four billion, twelve million, one hundred forty thousand, thirteen".