986998899689 has 4 divisors (see below), whose sum is σ = 1076726072400. Its totient is φ = 897271726980.

The previous prime is 986998899659. The next prime is 986998899721.

986998899689 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 986998899689 - 2⁸ = 986998899433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 986998899595 and 986998899604.

It is not an unprimeable number, because it can be changed into a prime (986998899659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44863586339 + ... + 44863586360.

It is an arithmetic number, because the mean of its divisors is an integer number (269181518100).

Almost surely, 2^986998899689 is an apocalyptic number.

It is an amenable number.

986998899689 is a deficient number, since it is larger than the sum of its proper divisors (89727172711).

986998899689 is a wasteful number, since it uses less digits than its factorization.

986998899689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89727172710.

The product of its digits is 78364164096, while the sum is 98.

The spelling of 986998899689 in words is "nine hundred eighty-six billion, nine hundred ninety-eight million, eight hundred ninety-nine thousand, six hundred eighty-nine".