98777655677789 has 32 divisors (see below), whose sum is σ = 112937628672000. Its totient is φ = 85515584344960.

The previous prime is 98777655677759. The next prime is 98777655677797.

98777655677789 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-98777655677789 is a prime.

It is a super-2 number, since 2×98777655677789² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98777655677695 and 98777655677704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98777655677749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280935392 + ... + 281286774.

It is an arithmetic number, because the mean of its divisors is an integer number (3529300896000).

Almost surely, 2^{98777655677789} is an apocalyptic number.

It is an amenable number.

98777655677789 is a deficient number, since it is larger than the sum of its proper divisors (14159972994211).

98777655677789 is a wasteful number, since it uses less digits than its factorization.

98777655677789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356305.

The product of its digits is 548903174400, while the sum is 98.

The spelling of 98777655677789 in words is "ninety-eight trillion, seven hundred seventy-seven billion, six hundred fifty-five million, six hundred seventy-seven thousand, seven hundred eighty-nine".