98809553839781 has 8 divisors (see below), whose sum is σ = 98900773434144. Its totient is φ = 98718347676240.

The previous prime is 98809553839747. The next prime is 98809553839849. The reversal of 98809553839781 is 18793835590889.

It is a happy number.

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

It is not a de Polignac number, because 98809553839781 - 2²⁶ = 98809486730917 is a prime.

It is a super-2 number, since 2×98809553839781² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98809553839781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98809553839741) 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, 11392826 + ... + 18094628.

It is an arithmetic number, because the mean of its divisors is an integer number (12362596679268).

Almost surely, 2^{98809553839781} is an apocalyptic number.

It is an amenable number.

98809553839781 is a deficient number, since it is larger than the sum of its proper divisors (91219594363).

98809553839781 is a wasteful number, since it uses less digits than its factorization.

98809553839781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715411.

The product of its (nonzero) digits is 4702924800, while the sum is 83.

The spelling of 98809553839781 in words is "ninety-eight trillion, eight hundred nine billion, five hundred fifty-three million, eight hundred thirty-nine thousand, seven hundred eighty-one".