404545442667 has 4 divisors (see below), whose sum is σ = 539393923560. Its totient is φ = 269696961776.

The previous prime is 404545442641. The next prime is 404545442677. The reversal of 404545442667 is 766244545404.

404545442667 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404545442667 - 2¹¹ = 404545440619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404545442677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67424240442 + ... + 67424240447.

It is an arithmetic number, because the mean of its divisors is an integer number (134848480890).

Almost surely, 2^404545442667 is an apocalyptic number.

404545442667 is a deficient number, since it is larger than the sum of its proper divisors (134848480893).

404545442667 is a wasteful number, since it uses less digits than its factorization.

404545442667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134848480892.

The product of its (nonzero) digits is 12902400, while the sum is 51.

The spelling of 404545442667 in words is "four hundred four billion, five hundred forty-five million, four hundred forty-two thousand, six hundred sixty-seven".