83938742208 has 70 divisors (see below), whose sum is σ = 248820742896. Its totient is φ = 27979579008.

The previous prime is 83938742189. The next prime is 83938742243. The reversal of 83938742208 is 80224783938.

83938742208 is a `hidden beast` number, since 8 + 39 + 387 + 4 + 220 + 8 = 666.

It is a super-2 number, since 2×83938742208² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 8090760 + ... + 8101127.

Almost surely, 2^83938742208 is an apocalyptic number.

It is an amenable number.

83938742208 is an abundant number, since it is smaller than the sum of its proper divisors (164882000688).

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

83938742208 is a wasteful number, since it uses less digits than its factorization.

83938742208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191911 (or 16191892 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 83938742208 in words is "eighty-three billion, nine hundred thirty-eight million, seven hundred forty-two thousand, two hundred eight".