31628565343 has 16 divisors (see below), whose sum is σ = 32514273792. Its totient is φ = 30748536000.

The previous prime is 31628565323. The next prime is 31628565377. The reversal of 31628565343 is 34356582613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31628565343 is a prime.

It is a super-2 number, since 2×31628565343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31628565293 and 31628565302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31628565323) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21326680 + ... + 21328162.

It is an arithmetic number, because the mean of its divisors is an integer number (2032142112).

Almost surely, 2^31628565343 is an apocalyptic number.

31628565343 is a deficient number, since it is larger than the sum of its proper divisors (885708449).

31628565343 is a wasteful number, since it uses less digits than its factorization.

31628565343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006.

The product of its digits is 1555200, while the sum is 46.

The spelling of 31628565343 in words is "thirty-one billion, six hundred twenty-eight million, five hundred sixty-five thousand, three hundred forty-three".