98557419920 has 40 divisors (see below), whose sum is σ = 229973294904. Its totient is φ = 39280637952.

The previous prime is 98557419901. The next prime is 98557419953. The reversal of 98557419920 is 2991475589.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 98555812096 = 1268^2 + 313936^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 98557419920.

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, 2201609 + ... + 2245928.

Almost surely, 2^98557419920 is an apocalyptic number.

It is an amenable number.

98557419920 is an abundant number, since it is smaller than the sum of its proper divisors (131415874984).

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

98557419920 is a wasteful number, since it uses less digits than its factorization.

98557419920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447827 (or 4447821 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 59.

The spelling of 98557419920 in words is "ninety-eight billion, five hundred fifty-seven million, four hundred nineteen thousand, nine hundred twenty".