12010809860 has 24 divisors (see below), whose sum is σ = 28825944000. Its totient is φ = 4117991904.

The previous prime is 12010809857. The next prime is 12010809887. The reversal of 12010809860 is 6890801021.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 12010809860.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42895610 + ... + 42895889.

It is an arithmetic number, because the mean of its divisors is an integer number (1201081000).

Almost surely, 2^12010809860 is an apocalyptic number.

12010809860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010809860 is an abundant number, since it is smaller than the sum of its proper divisors (16815134140).

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

12010809860 is a wasteful number, since it uses less digits than its factorization.

12010809860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85791515 (or 85791513 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 12010809860 in words is "twelve billion, ten million, eight hundred nine thousand, eight hundred sixty".