445079997625871 has 4 divisors (see below), whose sum is σ = 445080040600200. Its totient is φ = 445079954651544.

The previous prime is 445079997625859. The next prime is 445079997625873. The reversal of 445079997625871 is 178526799970544.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 445079997625871 - 2⁴² = 440681951114767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445079997625871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445079997625873) 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, 4628765 + ... + 30192473.

It is an arithmetic number, because the mean of its divisors is an integer number (111270010150050).

Almost surely, 2^{445079997625871} is an apocalyptic number.

445079997625871 is a deficient number, since it is larger than the sum of its proper divisors (42974329).

445079997625871 is a wasteful number, since it uses less digits than its factorization.

445079997625871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42974328.

The product of its (nonzero) digits is 9601804800, while the sum is 83.

The spelling of 445079997625871 in words is "four hundred forty-five trillion, seventy-nine billion, nine hundred ninety-seven million, six hundred twenty-five thousand, eight hundred seventy-one".