98832971521 has 8 divisors (see below), whose sum is σ = 101266155144. Its totient is φ = 96400865280.

The previous prime is 98832971513. The next prime is 98832971551. The reversal of 98832971521 is 12517923889.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10133240896 + 88699730625 = 100664^2 + 297825^2 .

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 98832971521 - 2³ = 98832971513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98832971551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82036 + ... + 452101.

It is an arithmetic number, because the mean of its divisors is an integer number (12658269393).

Almost surely, 2^98832971521 is an apocalyptic number.

It is an amenable number.

98832971521 is a deficient number, since it is larger than the sum of its proper divisors (2433183623).

98832971521 is a wasteful number, since it uses less digits than its factorization.

98832971521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538691.

The product of its digits is 2177280, while the sum is 55.

The spelling of 98832971521 in words is "ninety-eight billion, eight hundred thirty-two million, nine hundred seventy-one thousand, five hundred twenty-one".