83218133542319 has 4 divisors (see below), whose sum is σ = 85467272286744. Its totient is φ = 80968994797896.

The previous prime is 83218133542253. The next prime is 83218133542363. The reversal of 83218133542319 is 91324533181238.

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 83218133542319 - 2¹⁶ = 83218133476783 is a prime.

It is a super-2 number, since 2×83218133542319² (a number of 29 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 (83218133542399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124569372157 + ... + 1124569372230.

It is an arithmetic number, because the mean of its divisors is an integer number (21366818071686).

Almost surely, 2^{83218133542319} is an apocalyptic number.

83218133542319 is a deficient number, since it is larger than the sum of its proper divisors (2249138744425).

83218133542319 is a wasteful number, since it uses less digits than its factorization.

83218133542319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249138744424.

The product of its digits is 3732480, while the sum is 53.

The spelling of 83218133542319 in words is "eighty-three trillion, two hundred eighteen billion, one hundred thirty-three million, five hundred forty-two thousand, three hundred nineteen".