20310853189 has 8 divisors (see below), whose sum is σ = 22672580832. Its totient is φ = 18035006640.

The previous prime is 20310853181. The next prime is 20310853193. The reversal of 20310853189 is 98135801302.

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 20310853189 - 2³ = 20310853181 is a prime.

It is a super-2 number, since 2×20310853189² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310853181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21469774 + ... + 21470719.

It is an arithmetic number, because the mean of its divisors is an integer number (2834072604).

Almost surely, 2^20310853189 is an apocalyptic number.

It is an amenable number.

20310853189 is a deficient number, since it is larger than the sum of its proper divisors (2361727643).

20310853189 is a wasteful number, since it uses less digits than its factorization.

20310853189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42940547.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 20310853189 in words is "twenty billion, three hundred ten million, eight hundred fifty-three thousand, one hundred eighty-nine".