411420647618 has 6 divisors (see below), whose sum is σ = 617132332089. Its totient is φ = 205709870256.

The previous prime is 411420647611. The next prime is 411420647623. The reversal of 411420647618 is 816746024114.

It can be written as a sum of positive squares in 2 ways, for example, as 365078183089 + 46342464529 = 604217^2 + 215273^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=453553.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (411420647611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 680330 + ... + 1133882.

Almost surely, 2^411420647618 is an apocalyptic number.

411420647618 is a deficient number, since it is larger than the sum of its proper divisors (205711684471).

411420647618 is an frugal number, since it uses more digits than its factorization.

411420647618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907108 (or 453555 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 411420647618 in words is "four hundred eleven billion, four hundred twenty million, six hundred forty-seven thousand, six hundred eighteen".