11197859512 has 16 divisors (see below), whose sum is σ = 23995413360. Its totient is φ = 4799082624.

The previous prime is 11197859509. The next prime is 11197859521. The reversal of 11197859512 is 21595879111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99980833 + ... + 99980944.

It is an arithmetic number, because the mean of its divisors is an integer number (1499713335).

Almost surely, 2^11197859512 is an apocalyptic number.

It is an amenable number.

11197859512 is an abundant number, since it is smaller than the sum of its proper divisors (12797553848).

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

11197859512 is a wasteful number, since it uses less digits than its factorization.

11197859512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199961790 (or 199961786 counting only the distinct ones).

The product of its digits is 226800, while the sum is 49.

The spelling of 11197859512 in words is "eleven billion, one hundred ninety-seven million, eight hundred fifty-nine thousand, five hundred twelve".