82782782800538 has 8 divisors (see below), whose sum is σ = 124174335741888. Its totient is φ = 41391337553244.

The previous prime is 82782782800517. The next prime is 82782782800561. The reversal of 82782782800538 is 83500828728728.

It is a happy number.

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

It is a super-3 number, since 3×82782782800538³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24973556 + ... + 28093487.

It is an arithmetic number, because the mean of its divisors is an integer number (15521791967736).

Almost surely, 2^{82782782800538} is an apocalyptic number.

82782782800538 is a deficient number, since it is larger than the sum of its proper divisors (41391552941350).

82782782800538 is a wasteful number, since it uses less digits than its factorization.

82782782800538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53847028.

The product of its (nonzero) digits is 192675840, while the sum is 68.

The spelling of 82782782800538 in words is "eighty-two trillion, seven hundred eighty-two billion, seven hundred eighty-two million, eight hundred thousand, five hundred thirty-eight".