20210497688338 has 8 divisors (see below), whose sum is σ = 30318060927600. Its totient is φ = 10104477379140.

The previous prime is 20210497688333. The next prime is 20210497688411. The reversal of 20210497688338 is 83388679401202.

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

It is a super-3 number, since 3×20210497688338³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20210497688333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385699768 + ... + 385752163.

It is an arithmetic number, because the mean of its divisors is an integer number (3789757615950).

Almost surely, 2^{20210497688338} is an apocalyptic number.

20210497688338 is a deficient number, since it is larger than the sum of its proper divisors (10107563239262).

20210497688338 is a wasteful number, since it uses less digits than its factorization.

20210497688338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771465032.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 20210497688338 in words is "twenty trillion, two hundred ten billion, four hundred ninety-seven million, six hundred eighty-eight thousand, three hundred thirty-eight".