82694438197 has 8 divisors (see below), whose sum is σ = 96813001152. Its totient is φ = 69152143200.

The previous prime is 82694438191. The next prime is 82694438227. The reversal of 82694438197 is 79183449628.

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

It is a de Polignac number, because none of the positive numbers 2^k-82694438197 is a prime.

It is a super-2 number, since 2×82694438197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82694438191) 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, 144066679 + ... + 144067252.

It is an arithmetic number, because the mean of its divisors is an integer number (12101625144).

Almost surely, 2^82694438197 is an apocalyptic number.

It is an amenable number.

82694438197 is a deficient number, since it is larger than the sum of its proper divisors (14118562955).

82694438197 is a wasteful number, since it uses less digits than its factorization.

82694438197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288133979.

The product of its digits is 20901888, while the sum is 61.

The spelling of 82694438197 in words is "eighty-two billion, six hundred ninety-four million, four hundred thirty-eight thousand, one hundred ninety-seven".