83953331712 has 160 divisors (see below), whose sum is σ = 250469683200. Its totient is φ = 27763513344.

The previous prime is 83953331699. The next prime is 83953331723. The reversal of 83953331712 is 21713335938.

83953331712 is a `hidden beast` number, since 83 + 9 + 533 + 31 + 7 + 1 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1731739 + ... + 1779557.

It is an arithmetic number, because the mean of its divisors is an integer number (1565435520).

Almost surely, 2^83953331712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83953331712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125234841600).

83953331712 is an abundant number, since it is smaller than the sum of its proper divisors (166516351488).

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

83953331712 is a wasteful number, since it uses less digits than its factorization.

83953331712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47973 (or 47951 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 83953331712 in words is "eighty-three billion, nine hundred fifty-three million, three hundred thirty-one thousand, seven hundred twelve".