20212502064389 has 8 divisors (see below), whose sum is σ = 20714721172992. Its totient is φ = 19710722539360.

The previous prime is 20212502064367. The next prime is 20212502064397. The reversal of 20212502064389 is 98346020521202.

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 20212502064389 - 2³² = 20208207097093 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 (20212502064289) 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, 109802789 + ... + 109986714.

It is an arithmetic number, because the mean of its divisors is an integer number (2589340146624).

Almost surely, 2^{20212502064389} is an apocalyptic number.

It is an amenable number.

20212502064389 is a deficient number, since it is larger than the sum of its proper divisors (502219108603).

20212502064389 is a wasteful number, since it uses less digits than its factorization.

20212502064389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219791787.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 20212502064389 in words is "twenty trillion, two hundred twelve billion, five hundred two million, sixty-four thousand, three hundred eighty-nine".