445453455386718 has 64 divisors (see below), whose sum is σ = 999371055513600. Its totient is φ = 147064383393120.

The previous prime is 445453455386701. The next prime is 445453455386729. The reversal of 445453455386718 is 817683554354544.

445453455386718 is a `hidden beast` number, since 4 + 4 + 5 + 4 + 5 + 3 + 4 + 553 + 8 + 67 + 1 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88003 + ... + 29848193.

It is an arithmetic number, because the mean of its divisors is an integer number (15615172742400).

Almost surely, 2^{445453455386718} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445453455386718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499685527756800).

445453455386718 is an abundant number, since it is smaller than the sum of its proper divisors (553917600126882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445453455386718 is a wasteful number, since it uses less digits than its factorization.

445453455386718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29762854 (or 29762848 counting only the distinct ones).

The product of its digits is 3870720000, while the sum is 72.

The spelling of 445453455386718 in words is "four hundred forty-five trillion, four hundred fifty-three billion, four hundred fifty-five million, three hundred eighty-six thousand, seven hundred eighteen".