445765685213 has 2 divisors, whose sum is σ = 445765685214. Its totient is φ = 445765685212.

The previous prime is 445765685179. The next prime is 445765685219. The reversal of 445765685213 is 312586567544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376679242564 + 69086442649 = 613742^2 + 262843^2 .

It is a cyclic number.

It is not a de Polignac number, because 445765685213 - 2¹² = 445765681117 is a prime.

It is a super-2 number, since 2×445765685213² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445765685219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222882842606 + 222882842607.

It is an arithmetic number, because the mean of its divisors is an integer number (222882842607).

Almost surely, 2^445765685213 is an apocalyptic number.

It is an amenable number.

445765685213 is a deficient number, since it is larger than the sum of its proper divisors (1).

445765685213 is an equidigital number, since it uses as much as digits as its factorization.

445765685213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192000, while the sum is 56.

The spelling of 445765685213 in words is "four hundred forty-five billion, seven hundred sixty-five million, six hundred eighty-five thousand, two hundred thirteen".