31532734912 has 112 divisors (see below), whose sum is σ = 72467297280. Its totient is φ = 13334694912.

The previous prime is 31532734901. The next prime is 31532734921. The reversal of 31532734912 is 21943723513.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10771593 + ... + 10774519.

It is an arithmetic number, because the mean of its divisors is an integer number (647029440).

Almost surely, 2^31532734912 is an apocalyptic number.

31532734912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31532734912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36233648640).

31532734912 is an abundant number, since it is smaller than the sum of its proper divisors (40934562368).

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

31532734912 is a wasteful number, since it uses less digits than its factorization.

31532734912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258 (or 3248 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The spelling of 31532734912 in words is "thirty-one billion, five hundred thirty-two million, seven hundred thirty-four thousand, nine hundred twelve".