83542188823 has 4 divisors (see below), whose sum is σ = 83544933688. Its totient is φ = 83539443960.

The previous prime is 83542188811. The next prime is 83542188841. The reversal of 83542188823 is 32888124538.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83542188823 - 2¹⁷ = 83542057751 is a prime.

It is a super-2 number, since 2×83542188823² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83542188623) 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 3 ways as a sum of consecutive naturals, for example, 1326261 + ... + 1387822.

It is an arithmetic number, because the mean of its divisors is an integer number (20886233422).

Almost surely, 2^83542188823 is an apocalyptic number.

83542188823 is a deficient number, since it is larger than the sum of its proper divisors (2744865).

83542188823 is a wasteful number, since it uses less digits than its factorization.

83542188823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744864.

The product of its digits is 2949120, while the sum is 52.

The spelling of 83542188823 in words is "eighty-three billion, five hundred forty-two million, one hundred eighty-eight thousand, eight hundred twenty-three".