44140243213 has 4 divisors (see below), whose sum is σ = 48152992608. Its totient is φ = 40127493820.

The previous prime is 44140243193. The next prime is 44140243219. The reversal of 44140243213 is 31234204144.

44140243213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44140243213 is a prime.

It is a super-2 number, since 2×44140243213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44140243219) 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, 2006374681 + ... + 2006374702.

It is an arithmetic number, because the mean of its divisors is an integer number (12038248152).

Almost surely, 2^44140243213 is an apocalyptic number.

It is an amenable number.

44140243213 is a deficient number, since it is larger than the sum of its proper divisors (4012749395).

44140243213 is a wasteful number, since it uses less digits than its factorization.

44140243213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012749394.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 44140243213 its reverse (31234204144), we get a palindrome (75374447357).

The spelling of 44140243213 in words is "forty-four billion, one hundred forty million, two hundred forty-three thousand, two hundred thirteen".