44139294253 has 4 divisors (see below), whose sum is σ = 44249367708. Its totient is φ = 44029220800.

The previous prime is 44139294247. The next prime is 44139294289. The reversal of 44139294253 is 35249293144.

It is a happy number.

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 40835113929 + 3304180324 = 202077^2 + 57482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44139294253 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 (44139294653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55036126 + ... + 55036927.

It is an arithmetic number, because the mean of its divisors is an integer number (11062341927).

Almost surely, 2^44139294253 is an apocalyptic number.

It is an amenable number.

44139294253 is a deficient number, since it is larger than the sum of its proper divisors (110073455).

44139294253 is a wasteful number, since it uses less digits than its factorization.

44139294253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110073454.

The product of its digits is 933120, while the sum is 46.

The spelling of 44139294253 in words is "forty-four billion, one hundred thirty-nine million, two hundred ninety-four thousand, two hundred fifty-three".