20425001789 has 8 divisors (see below), whose sum is σ = 20796912000. Its totient is φ = 20053949152.

The previous prime is 20425001783. The next prime is 20425001869. The reversal of 20425001789 is 98710052402.

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 20425001789 - 2⁸ = 20425001533 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 (20425001783) 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, 166229 + ... + 261690.

It is an arithmetic number, because the mean of its divisors is an integer number (2599614000).

Almost surely, 2^20425001789 is an apocalyptic number.

It is an amenable number.

20425001789 is a deficient number, since it is larger than the sum of its proper divisors (371910211).

20425001789 is an equidigital number, since it uses as much as digits as its factorization.

20425001789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428787.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 20425001789 in words is "twenty billion, four hundred twenty-five million, one thousand, seven hundred eighty-nine".