98489467581 has 32 divisors (see below), whose sum is σ = 139675206528. Its totient is φ = 61517352960.

The previous prime is 98489467561. The next prime is 98489467603. The reversal of 98489467581 is 18576498489.

It is not a de Polignac number, because 98489467581 - 2²³ = 98481078973 is a prime.

It is a super-2 number, since 2×98489467581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98489467501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11872071 + ... + 11880363.

It is an arithmetic number, because the mean of its divisors is an integer number (4364850204).

Almost surely, 2^98489467581 is an apocalyptic number.

It is an amenable number.

98489467581 is a deficient number, since it is larger than the sum of its proper divisors (41185738947).

98489467581 is a wasteful number, since it uses less digits than its factorization.

98489467581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341.

The product of its digits is 139345920, while the sum is 69.

The spelling of 98489467581 in words is "ninety-eight billion, four hundred eighty-nine million, four hundred sixty-seven thousand, five hundred eighty-one".