31444413205 has 16 divisors (see below), whose sum is σ = 40142274624. Its totient is φ = 23563572480.

The previous prime is 31444413181. The next prime is 31444413233. The reversal of 31444413205 is 50231444413.

It is not a de Polignac number, because 31444413205 - 2⁹ = 31444412693 is a prime.

It is a super-2 number, since 2×31444413205² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858687 + ... + 894556.

It is an arithmetic number, because the mean of its divisors is an integer number (2508892164).

Almost surely, 2^31444413205 is an apocalyptic number.

It is an amenable number.

31444413205 is a deficient number, since it is larger than the sum of its proper divisors (8697861419).

31444413205 is a wasteful number, since it uses less digits than its factorization.

31444413205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753476.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 31444413205 its reverse (50231444413), we get a palindrome (81675857618).

The spelling of 31444413205 in words is "thirty-one billion, four hundred forty-four million, four hundred thirteen thousand, two hundred five".