98401725081 has 48 divisors (see below), whose sum is σ = 155560878720. Its totient is φ = 59444098560.

The previous prime is 98401725067. The next prime is 98401725109. The reversal of 98401725081 is 18052710489.

98401725081 is a `hidden beast` number, since 98 + 40 + 17 + 2 + 508 + 1 = 666.

It is not a de Polignac number, because 98401725081 - 2⁹ = 98401724569 is a prime.

It is a super-2 number, since 2×98401725081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98401725011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61232380 + ... + 61233986.

It is an arithmetic number, because the mean of its divisors is an integer number (3240851640).

Almost surely, 2^98401725081 is an apocalyptic number.

It is an amenable number.

98401725081 is a deficient number, since it is larger than the sum of its proper divisors (57159153639).

98401725081 is a wasteful number, since it uses less digits than its factorization.

98401725081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 98401725081 in words is "ninety-eight billion, four hundred one million, seven hundred twenty-five thousand, eighty-one".