98936120681 has 4 divisors (see below), whose sum is σ = 98947121364. Its totient is φ = 98925120000.

The previous prime is 98936120671. The next prime is 98936120687. The reversal of 98936120681 is 18602163989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57367435225 + 41568685456 = 239515^2 + 203884^2 .

It is a cyclic number.

It is not a de Polignac number, because 98936120681 - 2¹⁸ = 98935858537 is a prime.

It is a super-2 number, since 2×98936120681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98936120687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486840 + ... + 5504841.

It is an arithmetic number, because the mean of its divisors is an integer number (24736780341).

Almost surely, 2^98936120681 is an apocalyptic number.

It is an amenable number.

98936120681 is a deficient number, since it is larger than the sum of its proper divisors (11000683).

98936120681 is a wasteful number, since it uses less digits than its factorization.

98936120681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000682.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 98936120681 in words is "ninety-eight billion, nine hundred thirty-six million, one hundred twenty thousand, six hundred eighty-one".