98758719081 has 81 divisors (see below), whose sum is σ = 160076226583. Its totient is φ = 58628159040.

The previous prime is 98758719041. The next prime is 98758719083. The reversal of 98758719081 is 18091785789.

The square root of 98758719081 is 314259.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18963768681 + 79794950400 = 137709^2 + 282480^2 .

It is not a de Polignac number, because 98758719081 - 2¹¹ = 98758717033 is a prime.

It is a super-2 number, since 2×98758719081² (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 (98758719083) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 922978630 + ... + 922978736.

Almost surely, 2^98758719081 is an apocalyptic number.

98758719081 is the 314259-th square number.

98758719081 is the 157130-th centered octagonal number.

It is an amenable number.

98758719081 is a deficient number, since it is larger than the sum of its proper divisors (61317507502).

98758719081 is a wasteful number, since it uses less digits than its factorization.

98758719081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 63.

The spelling of 98758719081 in words is "ninety-eight billion, seven hundred fifty-eight million, seven hundred nineteen thousand, eighty-one".