98645777754689 has 12 divisors (see below), whose sum is σ = 108453345452928. Its totient is φ = 89657703916440.

The previous prime is 98645777754673. The next prime is 98645777754707.

98645777754689 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 98645777754689 - 2⁴ = 98645777754673 is a prime.

It is a super-2 number, since 2×98645777754689² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98645777754598 and 98645777754607.

It is not an unprimeable number, because it can be changed into a prime (98645777754619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91625609 + ... + 92695974.

It is an arithmetic number, because the mean of its divisors is an integer number (9037778787744).

Almost surely, 2^{98645777754689} is an apocalyptic number.

It is an amenable number.

98645777754689 is a deficient number, since it is larger than the sum of its proper divisors (9807567698239).

98645777754689 is a wasteful number, since it uses less digits than its factorization.

98645777754689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184326028 (or 184326017 counting only the distinct ones).

The product of its digits is 179233689600, while the sum is 92.

The spelling of 98645777754689 in words is "ninety-eight trillion, six hundred forty-five billion, seven hundred seventy-seven million, seven hundred fifty-four thousand, six hundred eighty-nine".