20092002009 has 16 divisors (see below), whose sum is σ = 27194668800. Its totient is φ = 13192082640.

The previous prime is 20092001987. The next prime is 20092002011. The reversal of 20092002009 is 90020029002.

It is not a de Polignac number, because 20092002009 - 2²⁰ = 20090953433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20092002009.

It is not an unprimeable number, because it can be changed into a prime (20092002509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1742754 + ... + 1754244.

It is an arithmetic number, because the mean of its divisors is an integer number (1699666800).

Almost surely, 2^20092002009 is an apocalyptic number.

It is an amenable number.

20092002009 is a deficient number, since it is larger than the sum of its proper divisors (7102666791).

20092002009 is a wasteful number, since it uses less digits than its factorization.

20092002009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 20092002009 in words is "twenty billion, ninety-two million, two thousand, nine".