99932486641 has 9 divisors (see below), whose sum is σ = 108215367681. Its totient is φ = 92241578832.

The previous prime is 99932486609. The next prime is 99932486653. The reversal of 99932486641 is 14668423999.

The square root of 99932486641 is 316121.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4105093041 + 95827393600 = 64071^2 + 309560^2 .

It is not a de Polignac number, because 99932486641 - 2⁵ = 99932486609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99932486641.

It is not an unprimeable number, because it can be changed into a prime (99932486671) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4097415 + ... + 4121731.

Almost surely, 2^99932486641 is an apocalyptic number.

99932486641 is the 316121-st square number.

99932486641 is the 158061-st centered octagonal number.

It is an amenable number.

99932486641 is a deficient number, since it is larger than the sum of its proper divisors (8282881040).

99932486641 is an frugal number, since it uses more digits than its factorization.

99932486641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48660 (or 24330 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 61.

The spelling of 99932486641 in words is "ninety-nine billion, nine hundred thirty-two million, four hundred eighty-six thousand, six hundred forty-one".