445004668813 has 4 divisors (see below), whose sum is σ = 445016889568. Its totient is φ = 444992448060.

The previous prime is 445004668777. The next prime is 445004668877. The reversal of 445004668813 is 318866400544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445004668813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445004668883) 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, 6055593 + ... + 6128638.

It is an arithmetic number, because the mean of its divisors is an integer number (111254222392).

Almost surely, 2^445004668813 is an apocalyptic number.

It is an amenable number.

445004668813 is a deficient number, since it is larger than the sum of its proper divisors (12220755).

445004668813 is a wasteful number, since it uses less digits than its factorization.

445004668813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220754.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 445004668813 in words is "four hundred forty-five billion, four million, six hundred sixty-eight thousand, eight hundred thirteen".