83538269479128 has 32 divisors (see below), whose sum is σ = 208845909849600. Its totient is φ = 27846058339488.

The previous prime is 83538269479127. The next prime is 83538269479177. The reversal of 83538269479128 is 82197496283538.

It is a super-3 number, since 3×83538269479128³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83538269479128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83538269479127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30907125 + ... + 33501147.

It is an arithmetic number, because the mean of its divisors is an integer number (6526434682800).

Almost surely, 2^{83538269479128} is an apocalyptic number.

It is an amenable number.

83538269479128 is an abundant number, since it is smaller than the sum of its proper divisors (125307640370472).

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

83538269479128 is a wasteful number, since it uses less digits than its factorization.

83538269479128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935871 (or 3935867 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 75.

The spelling of 83538269479128 in words is "eighty-three trillion, five hundred thirty-eight billion, two hundred sixty-nine million, four hundred seventy-nine thousand, one hundred twenty-eight".