11017979850 has 48 divisors (see below), whose sum is σ = 27339321600. Its totient is φ = 2936544000.

The previous prime is 11017979813. The next prime is 11017979851. The reversal of 11017979850 is 5897971011.

It is a self number, because there is not a number n which added to its sum of digits gives 11017979850.

It is not an unprimeable number, because it can be changed into a prime (11017979851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273826 + ... + 311474.

It is an arithmetic number, because the mean of its divisors is an integer number (569569200).

Almost surely, 2^11017979850 is an apocalyptic number.

11017979850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11017979850 is an abundant number, since it is smaller than the sum of its proper divisors (16321341750).

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

11017979850 is a wasteful number, since it uses less digits than its factorization.

11017979850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39615 (or 39610 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 48.

The spelling of 11017979850 in words is "eleven billion, seventeen million, nine hundred seventy-nine thousand, eight hundred fifty".