31431444444446 has 32 divisors (see below), whose sum is σ = 49022405591040. Its totient is φ = 15102552830400.

The previous prime is 31431444444437. The next prime is 31431444444451. The reversal of 31431444444446 is 64444444413413.

It is a junction number, because it is equal to n+sod(n) for n = 31431444444394 and 31431444444403.

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, 3845195 + ... + 8811833.

It is an arithmetic number, because the mean of its divisors is an integer number (1531950174720).

Almost surely, 2^{31431444444446} is an apocalyptic number.

31431444444446 is a deficient number, since it is larger than the sum of its proper divisors (17590961146594).

31431444444446 is a wasteful number, since it uses less digits than its factorization.

31431444444446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967840.

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

Adding to 31431444444446 its reverse (64444444413413), we get a palindrome (95875888857859).

The spelling of 31431444444446 in words is "thirty-one trillion, four hundred thirty-one billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-six".