31356310616444 has 12 divisors (see below), whose sum is σ = 59862047540568. Its totient is φ = 14252868462000.

The previous prime is 31356310616417. The next prime is 31356310616459. The reversal of 31356310616444 is 44461601365313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356321711507 + ... + 356321711594.

It is an arithmetic number, because the mean of its divisors is an integer number (4988503961714).

Almost surely, 2^{31356310616444} is an apocalyptic number.

It is an amenable number.

31356310616444 is a deficient number, since it is larger than the sum of its proper divisors (28505736924124).

31356310616444 is a wasteful number, since it uses less digits than its factorization.

31356310616444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712643423116 (or 712643423114 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 31356310616444 in words is "thirty-one trillion, three hundred fifty-six billion, three hundred ten million, six hundred sixteen thousand, four hundred forty-four".