44521626397 has 2 divisors, whose sum is σ = 44521626398. Its totient is φ = 44521626396.

The previous prime is 44521626277. The next prime is 44521626433. The reversal of 44521626397 is 79362612544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40454885956 + 4066740441 = 201134^2 + 63771^2 .

It is a cyclic number.

It is not a de Polignac number, because 44521626397 - 2⁷ = 44521626269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44521626397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44521656397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22260813198 + 22260813199.

It is an arithmetic number, because the mean of its divisors is an integer number (22260813199).

Almost surely, 2^44521626397 is an apocalyptic number.

It is an amenable number.

44521626397 is a deficient number, since it is larger than the sum of its proper divisors (1).

44521626397 is an equidigital number, since it uses as much as digits as its factorization.

44521626397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 49.

The spelling of 44521626397 in words is "forty-four billion, five hundred twenty-one million, six hundred twenty-six thousand, three hundred ninety-seven".