98656865678 has 64 divisors (see below), whose sum is σ = 179552256000. Its totient is φ = 40594296960.

The previous prime is 98656865677. The next prime is 98656865707. The reversal of 98656865678 is 87656865689.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98656865677) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2682518 + ... + 2719046.

It is an arithmetic number, because the mean of its divisors is an integer number (2805504000).

Almost surely, 2^98656865678 is an apocalyptic number.

98656865678 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

98656865678 is a deficient number, since it is larger than the sum of its proper divisors (80895390322).

98656865678 is a wasteful number, since it uses less digits than its factorization.

98656865678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36710 (or 36696 counting only the distinct ones).

The product of its digits is 1045094400, while the sum is 74.

The spelling of 98656865678 in words is "ninety-eight billion, six hundred fifty-six million, eight hundred sixty-five thousand, six hundred seventy-eight".