44140538293 has 2 divisors, whose sum is σ = 44140538294. Its totient is φ = 44140538292.

The previous prime is 44140538279. The next prime is 44140538347. The reversal of 44140538293 is 39283504144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40291328529 + 3849209764 = 200727^2 + 62042^2 .

It is a cyclic number.

It is not a de Polignac number, because 44140538293 - 2²⁹ = 43603667381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44140538993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22070269146 + 22070269147.

It is an arithmetic number, because the mean of its divisors is an integer number (22070269147).

Almost surely, 2^44140538293 is an apocalyptic number.

It is an amenable number.

44140538293 is a deficient number, since it is larger than the sum of its proper divisors (1).

44140538293 is an equidigital number, since it uses as much as digits as its factorization.

44140538293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 44140538293 in words is "forty-four billion, one hundred forty million, five hundred thirty-eight thousand, two hundred ninety-three".