31606651631244 has 12 divisors (see below), whose sum is σ = 73748853806264. Its totient is φ = 10535550543744.

The previous prime is 31606651631239. The next prime is 31606651631279. The reversal of 31606651631244 is 44213615660613.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 31606651631193 and 31606651631202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316943817957 + ... + 1316943817980.

Almost surely, 2^{31606651631244} is an apocalyptic number.

It is an amenable number.

31606651631244 is an abundant number, since it is smaller than the sum of its proper divisors (42142202175020).

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

31606651631244 is a wasteful number, since it uses less digits than its factorization.

31606651631244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633887635944 (or 2633887635942 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 31606651631244 in words is "thirty-one trillion, six hundred six billion, six hundred fifty-one million, six hundred thirty-one thousand, two hundred forty-four".