445025213641 has 2 divisors, whose sum is σ = 445025213642. Its totient is φ = 445025213640.

The previous prime is 445025213593. The next prime is 445025213671. The reversal of 445025213641 is 146312520544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444127612041 + 897601600 = 666429^2 + 29960^2 .

It is a cyclic number.

It is not a de Polignac number, because 445025213641 - 2⁷ = 445025213513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445025213641.

It is not a weakly prime, because it can be changed into another prime (445025213671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222512606820 + 222512606821.

It is an arithmetic number, because the mean of its divisors is an integer number (222512606821).

Almost surely, 2^445025213641 is an apocalyptic number.

It is an amenable number.

445025213641 is a deficient number, since it is larger than the sum of its proper divisors (1).

445025213641 is an equidigital number, since it uses as much as digits as its factorization.

445025213641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 445025213641 in words is "four hundred forty-five billion, twenty-five million, two hundred thirteen thousand, six hundred forty-one".