82259693902369 has 3 divisors (see below), whose sum is σ = 82259702972083. Its totient is φ = 82259684832656.

The previous prime is 82259693902367. The next prime is 82259693902391. The reversal of 82259693902369 is 96320939695228.

The square root of 82259693902369 is 9069713.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 78046888392225 + 4212805510144 = 8834415^2 + 2052512^2 .

It is not a de Polignac number, because 82259693902369 - 2¹ = 82259693902367 is a prime.

It is a super-2 number, since 2×82259693902369² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82259693902367) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4534857 + ... + 13604569.

Almost surely, 2^{82259693902369} is an apocalyptic number.

82259693902369 is the 9069713-rd square number.

82259693902369 is the 4534857-th centered octagonal number.

It is an amenable number.

82259693902369 is a deficient number, since it is larger than the sum of its proper divisors (9069714).

82259693902369 is an frugal number, since it uses more digits than its factorization.

82259693902369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18139426 (or 9069713 counting only the distinct ones).

The product of its (nonzero) digits is 680244480, while the sum is 73.

The spelling of 82259693902369 in words is "eighty-two trillion, two hundred fifty-nine billion, six hundred ninety-three million, nine hundred two thousand, three hundred sixty-nine".