445676742878117 has 4 divisors (see below), whose sum is σ = 448166557084320. Its totient is φ = 443186928671916.

The previous prime is 445676742878113. The next prime is 445676742878197. The reversal of 445676742878117 is 711878247676544.

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 not a de Polignac number, because 445676742878117 - 2² = 445676742878113 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 (445676742878113) 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, 1244907102833 + ... + 1244907103190.

It is an arithmetic number, because the mean of its divisors is an integer number (112041639271080).

Almost surely, 2^{445676742878117} is an apocalyptic number.

It is an amenable number.

445676742878117 is a deficient number, since it is larger than the sum of its proper divisors (2489814206203).

445676742878117 is a wasteful number, since it uses less digits than its factorization.

445676742878117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489814206202.

The product of its digits is 3540418560, while the sum is 77.

The spelling of 445676742878117 in words is "four hundred forty-five trillion, six hundred seventy-six billion, seven hundred forty-two million, eight hundred seventy-eight thousand, one hundred seventeen".