31935834436 has 27 divisors (see below), whose sum is σ = 61437856543. Its totient is φ = 14514501320.

The previous prime is 31935834421. The next prime is 31935834439. The reversal of 31935834436 is 63443853913.

The square root of 31935834436 is 178706.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×31935834436² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31935834436.

It is not an unprimeable number, because it can be changed into a prime (31935834439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3927471 + ... + 3935593.

Almost surely, 2^31935834436 is an apocalyptic number.

31935834436 is the 178706-th square number.

It is an amenable number.

31935834436 is a deficient number, since it is larger than the sum of its proper divisors (29502022107).

31935834436 is an frugal number, since it uses more digits than its factorization.

31935834436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16272 (or 8136 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 49.

Multiplying 31935834436 by its sum of digits (49), we get a square (1564855887364 = 1250942²).

The spelling of 31935834436 in words is "thirty-one billion, nine hundred thirty-five million, eight hundred thirty-four thousand, four hundred thirty-six".