11157869100 has 144 divisors (see below), whose sum is σ = 37165621248. Its totient is φ = 2531688960.

The previous prime is 11157869083. The next prime is 11157869101. The reversal of 11157869100 is 196875111.

It is not an unprimeable number, because it can be changed into a prime (11157869101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 268309 + ... + 307091.

It is an arithmetic number, because the mean of its divisors is an integer number (258094592).

Almost surely, 2^11157869100 is an apocalyptic number.

11157869100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11157869100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18582810624).

11157869100 is an abundant number, since it is smaller than the sum of its proper divisors (26007752148).

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

11157869100 is a wasteful number, since it uses less digits than its factorization.

11157869100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38944 (or 38937 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 39.

The spelling of 11157869100 in words is "eleven billion, one hundred fifty-seven million, eight hundred sixty-nine thousand, one hundred".