445002813851 has 4 divisors (see below), whose sum is σ = 468424014600. Its totient is φ = 421581613104.

The previous prime is 445002813823. The next prime is 445002813877. The reversal of 445002813851 is 158318200544.

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 445002813851 - 2¹⁰ = 445002812827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445002813799 and 445002813808.

It is not an unprimeable number, because it can be changed into a prime (445002810851) 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, 11710600346 + ... + 11710600383.

It is an arithmetic number, because the mean of its divisors is an integer number (117106003650).

Almost surely, 2^445002813851 is an apocalyptic number.

445002813851 is a deficient number, since it is larger than the sum of its proper divisors (23421200749).

445002813851 is a wasteful number, since it uses less digits than its factorization.

445002813851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23421200748.

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 445002813851 in words is "four hundred forty-five billion, two million, eight hundred thirteen thousand, eight hundred fifty-one".