82256491202 has 18 divisors (see below), whose sum is σ = 124364022003. Its totient is φ = 40804372404.

The previous prime is 82256491139. The next prime is 82256491223. The reversal of 82256491202 is 20219465228.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41128245601 + 41128245601 = 202801^2 + 202801^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=202801.

It is a super-2 number, since 2×82256491202² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82256491202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56377949 + ... + 56379407.

Almost surely, 2^82256491202 is an apocalyptic number.

82256491202 is a deficient number, since it is larger than the sum of its proper divisors (42107530801).

82256491202 is an frugal number, since it uses more digits than its factorization.

82256491202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 82256491202 in words is "eighty-two billion, two hundred fifty-six million, four hundred ninety-one thousand, two hundred two".