98239723840 has 56 divisors (see below), whose sum is σ = 233962251912. Its totient is φ = 39291033600.

The previous prime is 98239723823. The next prime is 98239723903. The reversal of 98239723840 is 4832793289.

It can be written as a sum of positive squares in 4 ways, for example, as 6881034304 + 91358689536 = 82952^2 + 302256^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3731202 + ... + 3757438.

Almost surely, 2^98239723840 is an apocalyptic number.

It is an amenable number.

98239723840 is an abundant number, since it is smaller than the sum of its proper divisors (135722528072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98239723840 is a wasteful number, since it uses less digits than its factorization.

98239723840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37955 (or 37945 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 98239723840 in words is "ninety-eight billion, two hundred thirty-nine million, seven hundred twenty-three thousand, eight hundred forty".