98643257856 has 720 divisors, whose sum is σ = 348659351040. Its totient is φ = 26641612800.

The previous prime is 98643257827. The next prime is 98643257893. The reversal of 98643257856 is 65875234689.

It is a happy number.

98643257856 is a `hidden beast` number, since 9 + 8 + 6 + 4 + 3 + 2 + 578 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 98643257793 and 98643257802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 224699685 + ... + 224700123.

Almost surely, 2^98643257856 is an apocalyptic number.

98643257856 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98643257856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174329675520).

98643257856 is an abundant number, since it is smaller than the sum of its proper divisors (250016093184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98643257856 is a wasteful number, since it uses less digits than its factorization.

98643257856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 499 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 98643257856 in words is "ninety-eight billion, six hundred forty-three million, two hundred fifty-seven thousand, eight hundred fifty-six".