98677788777689 has 4 divisors (see below), whose sum is σ = 107648496848400. Its totient is φ = 89707080706980.

The previous prime is 98677788777671. The next prime is 98677788777691.

It is a happy number.

98677788777689 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 not a de Polignac number, because 98677788777689 - 2⁸ = 98677788777433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 98677788777592 and 98677788777601.

It is not an unprimeable number, because it can be changed into a prime (98677788777629) 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, 4485354035339 + ... + 4485354035360.

It is an arithmetic number, because the mean of its divisors is an integer number (26912124212100).

Almost surely, 2^{98677788777689} is an apocalyptic number.

It is an amenable number.

98677788777689 is a deficient number, since it is larger than the sum of its proper divisors (8970708070711).

98677788777689 is a wasteful number, since it uses less digits than its factorization.

98677788777689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970708070710.

The product of its digits is 1405192126464, while the sum is 104.

The spelling of 98677788777689 in words is "ninety-eight trillion, six hundred seventy-seven billion, seven hundred eighty-eight million, seven hundred seventy-seven thousand, six hundred eighty-nine".