1009181819202 has 16 divisors (see below), whose sum is σ = 2020429528992. Its totient is φ = 336049624640.

The previous prime is 1009181819183. The next prime is 1009181819213. The reversal of 1009181819202 is 2029181819001.

It is a happy number.

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, 86072424 + ... + 86084147.

It is an arithmetic number, because the mean of its divisors is an integer number (126276845562).

Almost surely, 2^{1009181819202} is an apocalyptic number.

1009181819202 is an abundant number, since it is smaller than the sum of its proper divisors (1011247709790).

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

1009181819202 is a wasteful number, since it uses less digits than its factorization.

1009181819202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172157553.

The product of its (nonzero) digits is 20736, while the sum is 42.

The spelling of 1009181819202 in words is "one trillion, nine billion, one hundred eighty-one million, eight hundred nineteen thousand, two hundred two".