20089915793 has 8 divisors (see below), whose sum is σ = 20786969280. Its totient is φ = 19393148880.

The previous prime is 20089915787. The next prime is 20089915837. The reversal of 20089915793 is 39751998002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20089915793 - 2¹⁰ = 20089914769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20089915723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76196 + ... + 214442.

It is an arithmetic number, because the mean of its divisors is an integer number (2598371160).

Almost surely, 2^20089915793 is an apocalyptic number.

It is an amenable number.

20089915793 is a deficient number, since it is larger than the sum of its proper divisors (697053487).

20089915793 is a wasteful number, since it uses less digits than its factorization.

20089915793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143287.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 20089915793 in words is "twenty billion, eighty-nine million, nine hundred fifteen thousand, seven hundred ninety-three".