82698543877857 has 16 divisors (see below), whose sum is σ = 110279167200000. Its totient is φ = 55125142095744.

The previous prime is 82698543877813. The next prime is 82698543877883. The reversal of 82698543877857 is 75877834589628.

It is not a de Polignac number, because 82698543877857 - 2⁸ = 82698543877601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82698543877897) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 852171144 + ... + 852268182.

It is an arithmetic number, because the mean of its divisors is an integer number (6892447950000).

Almost surely, 2^{82698543877857} is an apocalyptic number.

It is an amenable number.

82698543877857 is a deficient number, since it is larger than the sum of its proper divisors (27580623322143).

82698543877857 is a wasteful number, since it uses less digits than its factorization.

82698543877857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131320.

The product of its digits is 45519667200, while the sum is 87.

The spelling of 82698543877857 in words is "eighty-two trillion, six hundred ninety-eight billion, five hundred forty-three million, eight hundred seventy-seven thousand, eight hundred fifty-seven".