445209670128 has 80 divisors (see below), whose sum is σ = 1156308491520. Its totient is φ = 147607477248.

The previous prime is 445209670127. The next prime is 445209670141. The reversal of 445209670128 is 821076902544.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445209670123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6744901 + ... + 6810587.

It is an arithmetic number, because the mean of its divisors is an integer number (14453856144).

Almost surely, 2^445209670128 is an apocalyptic number.

445209670128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

445209670128 is an abundant number, since it is smaller than the sum of its proper divisors (711098821392).

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

445209670128 is a wasteful number, since it uses less digits than its factorization.

445209670128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66454 (or 66448 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 445209670128 in words is "four hundred forty-five billion, two hundred nine million, six hundred seventy thousand, one hundred twenty-eight".