98879726761 has 8 divisors (see below), whose sum is σ = 99032383944. Its totient is φ = 98727162240.

The previous prime is 98879726753. The next prime is 98879726767. The reversal of 98879726761 is 16762797889.

It can be written as a sum of positive squares in 4 ways, for example, as 1198475161 + 97681251600 = 34619^2 + 312540^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 98879726761 - 2³ = 98879726753 is a prime.

It is a super-2 number, since 2×98879726761² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98879726767) 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 7 ways as a sum of consecutive naturals, for example, 2287731 + ... + 2330551.

It is an arithmetic number, because the mean of its divisors is an integer number (12379047993).

Almost surely, 2^98879726761 is an apocalyptic number.

It is an amenable number.

98879726761 is a deficient number, since it is larger than the sum of its proper divisors (152657183).

98879726761 is a wasteful number, since it uses less digits than its factorization.

98879726761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46331.

The product of its digits is 128024064, while the sum is 70.

The spelling of 98879726761 in words is "ninety-eight billion, eight hundred seventy-nine million, seven hundred twenty-six thousand, seven hundred sixty-one".