444402109013 has 2 divisors, whose sum is σ = 444402109014. Its totient is φ = 444402109012.

The previous prime is 444402109003. The next prime is 444402109079. The reversal of 444402109013 is 310901204444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442280861764 + 2121247249 = 665042^2 + 46057^2 .

It is a cyclic number.

It is not a de Polignac number, because 444402109013 - 2¹² = 444402104917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444402109003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222201054506 + 222201054507.

It is an arithmetic number, because the mean of its divisors is an integer number (222201054507).

Almost surely, 2^444402109013 is an apocalyptic number.

It is an amenable number.

444402109013 is a deficient number, since it is larger than the sum of its proper divisors (1).

444402109013 is an equidigital number, since it uses as much as digits as its factorization.

444402109013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 444402109013 in words is "four hundred forty-four billion, four hundred two million, one hundred nine thousand, thirteen".