445217608518 has 32 divisors (see below), whose sum is σ = 891937554912. Its totient is φ = 148155571200.

The previous prime is 445217608489. The next prime is 445217608523. The reversal of 445217608518 is 815806712544.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30443248 + ... + 30457868.

It is an arithmetic number, because the mean of its divisors is an integer number (27873048591).

Almost surely, 2^445217608518 is an apocalyptic number.

445217608518 is an abundant number, since it is smaller than the sum of its proper divisors (446719946394).

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

445217608518 is a wasteful number, since it uses less digits than its factorization.

445217608518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22840.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 445217608518 in words is "four hundred forty-five billion, two hundred seventeen million, six hundred eight thousand, five hundred eighteen".