20364831164389 has 8 divisors (see below), whose sum is σ = 20397592006272. Its totient is φ = 20332071864720.

The previous prime is 20364831164383. The next prime is 20364831164423. The reversal of 20364831164389 is 98346113846302.

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 20364831164389 - 2⁷ = 20364831164261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364831164383) 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, 27686832 + ... + 28412854.

It is an arithmetic number, because the mean of its divisors is an integer number (2549699000784).

Almost surely, 2^{20364831164389} is an apocalyptic number.

It is an amenable number.

20364831164389 is a deficient number, since it is larger than the sum of its proper divisors (32760841883).

20364831164389 is an equidigital number, since it uses as much as digits as its factorization.

20364831164389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771107.

The product of its (nonzero) digits is 17915904, while the sum is 58.

The spelling of 20364831164389 in words is "twenty trillion, three hundred sixty-four billion, eight hundred thirty-one million, one hundred sixty-four thousand, three hundred eighty-nine".