407444855897 has 2 divisors, whose sum is σ = 407444855898. Its totient is φ = 407444855896.

The previous prime is 407444855869. The next prime is 407444855927. The reversal of 407444855897 is 798558444704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362746016656 + 44698839241 = 602284^2 + 211421^2 .

It is a cyclic number.

It is not a de Polignac number, because 407444855897 - 2³⁸ = 132566948953 is a prime.

It is a super-4 number, since 4×407444855897⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (407444855827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203722427948 + 203722427949.

It is an arithmetic number, because the mean of its divisors is an integer number (203722427949).

Almost surely, 2^407444855897 is an apocalyptic number.

It is an amenable number.

407444855897 is a deficient number, since it is larger than the sum of its proper divisors (1).

407444855897 is an equidigital number, since it uses as much as digits as its factorization.

407444855897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180633600, while the sum is 65.

The spelling of 407444855897 in words is "four hundred seven billion, four hundred forty-four million, eight hundred fifty-five thousand, eight hundred ninety-seven".