444242215021432 has 16 divisors (see below), whose sum is σ = 852325179983640. Its totient is φ = 216955500359136.

The previous prime is 444242215021417. The next prime is 444242215021439. The reversal of 444242215021432 is 234120512242444.

It is a super-2 number, since 2×444242215021432² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444242215021439) 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, 645700893583 + ... + 645700894270.

Almost surely, 2^{444242215021432} is an apocalyptic number.

It is an amenable number.

444242215021432 is a deficient number, since it is larger than the sum of its proper divisors (408082964962208).

444242215021432 is a wasteful number, since it uses less digits than its factorization.

444242215021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291401787902 (or 1291401787898 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 40.

Adding to 444242215021432 its reverse (234120512242444), we get a palindrome (678362727263876).

The spelling of 444242215021432 in words is "four hundred forty-four trillion, two hundred forty-two billion, two hundred fifteen million, twenty-one thousand, four hundred thirty-two".