82219337693 has 8 divisors (see below), whose sum is σ = 87610267512. Its totient is φ = 76890018816.

The previous prime is 82219337677. The next prime is 82219337729. The reversal of 82219337693 is 39673391228.

It can be written as a sum of positive squares in 4 ways, for example, as 11911103044 + 70308234649 = 109138^2 + 265157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82219337693 - 2⁴ = 82219337677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82219339693) 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, 15399980 + ... + 15405317.

It is an arithmetic number, because the mean of its divisors is an integer number (10951283439).

Almost surely, 2^82219337693 is an apocalyptic number.

It is an amenable number.

82219337693 is a deficient number, since it is larger than the sum of its proper divisors (5390929819).

82219337693 is a wasteful number, since it uses less digits than its factorization.

82219337693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30805471.

The product of its digits is 2939328, while the sum is 53.

The spelling of 82219337693 in words is "eighty-two billion, two hundred nineteen million, three hundred thirty-seven thousand, six hundred ninety-three".