44215512641 has 2 divisors, whose sum is σ = 44215512642. Its totient is φ = 44215512640.

The previous prime is 44215512631. The next prime is 44215512647. The reversal of 44215512641 is 14621551244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24626711041 + 19588801600 = 156929^2 + 139960^2 .

It is a cyclic number.

It is not a de Polignac number, because 44215512641 - 2¹⁴ = 44215496257 is a prime.

It is not a weakly prime, because it can be changed into another prime (44215512647) 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, 22107756320 + 22107756321.

It is an arithmetic number, because the mean of its divisors is an integer number (22107756321).

Almost surely, 2^44215512641 is an apocalyptic number.

It is an amenable number.

44215512641 is a deficient number, since it is larger than the sum of its proper divisors (1).

44215512641 is an equidigital number, since it uses as much as digits as its factorization.

44215512641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 35.

The spelling of 44215512641 in words is "forty-four billion, two hundred fifteen million, five hundred twelve thousand, six hundred forty-one".