44012972257 has 2 divisors, whose sum is σ = 44012972258. Its totient is φ = 44012972256.

The previous prime is 44012972233. The next prime is 44012972261. The reversal of 44012972257 is 75227921044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43443481761 + 569490496 = 208431^2 + 23864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44012972257 is a prime.

It is not a weakly prime, because it can be changed into another prime (44012975257) 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 as a sum of consecutive naturals, namely, 22006486128 + 22006486129.

It is an arithmetic number, because the mean of its divisors is an integer number (22006486129).

Almost surely, 2^44012972257 is an apocalyptic number.

It is an amenable number.

44012972257 is a deficient number, since it is larger than the sum of its proper divisors (1).

44012972257 is an equidigital number, since it uses as much as digits as its factorization.

44012972257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 44012972257 in words is "forty-four billion, twelve million, nine hundred seventy-two thousand, two hundred fifty-seven".