11198798500 has 24 divisors (see below), whose sum is σ = 24458177016. Its totient is φ = 4479519200.

The previous prime is 11198798483. The next prime is 11198798537. The reversal of 11198798500 is 589789111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79524 + 11198718976 = 282^2 + 105824^2 .

It is a super-3 number, since 3×11198798500³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11198299 + ... + 11199298.

It is an arithmetic number, because the mean of its divisors is an integer number (1019090709).

Almost surely, 2^11198798500 is an apocalyptic number.

11198798500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11198798500 is an abundant number, since it is smaller than the sum of its proper divisors (13259378516).

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

11198798500 is a wasteful number, since it uses less digits than its factorization.

11198798500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22397616 (or 22397604 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 49.

The spelling of 11198798500 in words is "eleven billion, one hundred ninety-eight million, seven hundred ninety-eight thousand, five hundred".