844426462445 has 4 divisors (see below), whose sum is σ = 1013311754940. Its totient is φ = 675541169952.

The previous prime is 844426462427. The next prime is 844426462459. The reversal of 844426462445 is 544264624448.

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

It can be written as a sum of positive squares in 2 ways, for example, as 329858394889 + 514568067556 = 574333^2 + 717334^2 .

It is a cyclic number.

It is not a de Polignac number, because 844426462445 - 2²⁰ = 844425413869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84442646240 + ... + 84442646249.

It is an arithmetic number, because the mean of its divisors is an integer number (253327938735).

Almost surely, 2^844426462445 is an apocalyptic number.

It is an amenable number.

844426462445 is a deficient number, since it is larger than the sum of its proper divisors (168885292495).

844426462445 is a wasteful number, since it uses less digits than its factorization.

844426462445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168885292494.

The product of its digits is 23592960, while the sum is 53.

The spelling of 844426462445 in words is "eight hundred forty-four billion, four hundred twenty-six million, four hundred sixty-two thousand, four hundred forty-five".