445744431134212 has 18 divisors (see below), whose sum is σ = 907408306237902. Its totient is φ = 191033327628864.

The previous prime is 445744431134131. The next prime is 445744431134243. The reversal of 445744431134212 is 212431134447544.

It can be written as a sum of positive squares in only one way, i.e., 369808822611396 + 75935608522816 = 19230414^2 + 8714104^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1137103140453 + ... + 1137103140844.

Almost surely, 2^{445744431134212} is an apocalyptic number.

It is an amenable number.

445744431134212 is an abundant number, since it is smaller than the sum of its proper divisors (461663875103690).

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

445744431134212 is a wasteful number, since it uses less digits than its factorization.

445744431134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274206281315 (or 2274206281306 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 49.

The spelling of 445744431134212 in words is "four hundred forty-five trillion, seven hundred forty-four billion, four hundred thirty-one million, one hundred thirty-four thousand, two hundred twelve".