20092681989 has 16 divisors (see below), whose sum is σ = 29801867200. Its totient is φ = 13379402448.

The previous prime is 20092681981. The next prime is 20092681993. The reversal of 20092681989 is 98918629002.

It is not a de Polignac number, because 20092681989 - 2³ = 20092681981 is a prime.

It is a super-2 number, since 2×20092681989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20092681981) 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, 413179 + ... + 459240.

It is an arithmetic number, because the mean of its divisors is an integer number (1862616700).

Almost surely, 2^20092681989 is an apocalyptic number.

It is an amenable number.

20092681989 is a deficient number, since it is larger than the sum of its proper divisors (9709185211).

20092681989 is an equidigital number, since it uses as much as digits as its factorization.

20092681989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873281 (or 873275 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 20092681989 in words is "twenty billion, ninety-two million, six hundred eighty-one thousand, nine hundred eighty-nine".