31444431444446 has 8 divisors (see below), whose sum is σ = 47168696444880. Its totient is φ = 15721532629488.

The previous prime is 31444431444409. The next prime is 31444431444469. The reversal of 31444431444446 is 64444413444413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31444431444394 and 31444431444403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341488826 + ... + 341580893.

It is an arithmetic number, because the mean of its divisors is an integer number (5896087055610).

Almost surely, 2^{31444431444446} is an apocalyptic number.

31444431444446 is a deficient number, since it is larger than the sum of its proper divisors (15724265000434).

31444431444446 is a wasteful number, since it uses less digits than its factorization.

31444431444446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683092738.

The product of its digits is 14155776, while the sum is 50.

Adding to 31444431444446 its reverse (64444413444413), we get a palindrome (95888844888859).

The spelling of 31444431444446 in words is "thirty-one trillion, four hundred forty-four billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred forty-six".