445470440993 has 2 divisors, whose sum is σ = 445470440994. Its totient is φ = 445470440992.

The previous prime is 445470440957. The next prime is 445470440999. The reversal of 445470440993 is 399044074544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350142025984 + 95328415009 = 591728^2 + 308753^2 .

It is a cyclic number.

It is not a de Polignac number, because 445470440993 - 2¹⁰ = 445470439969 is a prime.

It is not a weakly prime, because it can be changed into another prime (445470440999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222735220496 + 222735220497.

It is an arithmetic number, because the mean of its divisors is an integer number (222735220497).

Almost surely, 2^445470440993 is an apocalyptic number.

It is an amenable number.

445470440993 is a deficient number, since it is larger than the sum of its proper divisors (1).

445470440993 is an equidigital number, since it uses as much as digits as its factorization.

445470440993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 445470440993 in words is "four hundred forty-five billion, four hundred seventy million, four hundred forty thousand, nine hundred ninety-three".