44136251641 has 2 divisors, whose sum is σ = 44136251642. Its totient is φ = 44136251640.

The previous prime is 44136251623. The next prime is 44136251657. The reversal of 44136251641 is 14615263144.

44136251641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38300055616 + 5836196025 = 195704^2 + 76395^2 .

It is a cyclic number.

It is not a de Polignac number, because 44136251641 - 2¹³ = 44136243449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44136251641.

It is not a weakly prime, because it can be changed into another prime (44136251671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22068125820 + 22068125821.

It is an arithmetic number, because the mean of its divisors is an integer number (22068125821).

Almost surely, 2^44136251641 is an apocalyptic number.

It is an amenable number.

44136251641 is a deficient number, since it is larger than the sum of its proper divisors (1).

44136251641 is an equidigital number, since it uses as much as digits as its factorization.

44136251641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The spelling of 44136251641 in words is "forty-four billion, one hundred thirty-six million, two hundred fifty-one thousand, six hundred forty-one".