11271808860 has 96 divisors (see below), whose sum is σ = 35988224832. Its totient is φ = 2611384320.

The previous prime is 11271808859. The next prime is 11271808861. The reversal of 11271808860 is 6880817211.

It is an interprime number because it is at equal distance from previous prime (11271808859) and next prime (11271808861).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11271808861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411771 + ... + 438290.

It is an arithmetic number, because the mean of its divisors is an integer number (374877342).

Almost surely, 2^11271808860 is an apocalyptic number.

11271808860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11271808860 is an abundant number, since it is smaller than the sum of its proper divisors (24716415972).

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

11271808860 is a wasteful number, since it uses less digits than its factorization.

11271808860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850103 (or 850101 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 42.

The spelling of 11271808860 in words is "eleven billion, two hundred seventy-one million, eight hundred eight thousand, eight hundred sixty".