445367811901 has 2 divisors, whose sum is σ = 445367811902. Its totient is φ = 445367811900.

The previous prime is 445367811821. The next prime is 445367811913. The reversal of 445367811901 is 109118763544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345843967225 + 99523844676 = 588085^2 + 315474^2 .

It is a cyclic number.

It is not a de Polignac number, because 445367811901 - 2⁷ = 445367811773 is a prime.

It is a super-3 number, since 3×445367811901³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445367811001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222683905950 + 222683905951.

It is an arithmetic number, because the mean of its divisors is an integer number (222683905951).

Almost surely, 2^445367811901 is an apocalyptic number.

It is an amenable number.

445367811901 is a deficient number, since it is larger than the sum of its proper divisors (1).

445367811901 is an equidigital number, since it uses as much as digits as its factorization.

445367811901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 445367811901 in words is "four hundred forty-five billion, three hundred sixty-seven million, eight hundred eleven thousand, nine hundred one".