2009181819292 has 12 divisors (see below), whose sum is σ = 3516274632976. Its totient is φ = 1004531924160.

The previous prime is 2009181819259. The next prime is 2009181819341. The reversal of 2009181819292 is 2929181819002.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14669688 + ... + 14806015.

Almost surely, 2^{2009181819292} is an apocalyptic number.

It is an amenable number.

2009181819292 is a deficient number, since it is larger than the sum of its proper divisors (1507092813684).

2009181819292 is a wasteful number, since it uses less digits than its factorization.

2009181819292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29492748 (or 29492746 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 52.

The spelling of 2009181819292 in words is "two trillion, nine billion, one hundred eighty-one million, eight hundred nineteen thousand, two hundred ninety-two".