98678633687689 has 8 divisors (see below), whose sum is σ = 108000068143968. Its totient is φ = 89415640827360.

The previous prime is 98678633687687. The next prime is 98678633687719.

98678633687689 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 98678633687689 - 2¹ = 98678633687687 is a prime.

It is a super-2 number, since 2×98678633687689² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98678633687597 and 98678633687606.

It is not an unprimeable number, because it can be changed into a prime (98678633687681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14610395452 + ... + 14610402205.

It is an arithmetic number, because the mean of its divisors is an integer number (13500008517996).

Almost surely, 2^{98678633687689} is an apocalyptic number.

It is an amenable number.

98678633687689 is a deficient number, since it is larger than the sum of its proper divisors (9321434456279).

98678633687689 is a wasteful number, since it uses less digits than its factorization.

98678633687689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29220797975.

The product of its digits is 189621927936, while the sum is 94.

The spelling of 98678633687689 in words is "ninety-eight trillion, six hundred seventy-eight billion, six hundred thirty-three million, six hundred eighty-seven thousand, six hundred eighty-nine".