20607425409 has 8 divisors (see below), whose sum is σ = 27530550720. Its totient is φ = 13711291856.

The previous prime is 20607425387. The next prime is 20607425411. The reversal of 20607425409 is 90452470602.

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 20607425409 - 2¹² = 20607421313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20607425609) 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, 6746157 + ... + 6749210.

It is an arithmetic number, because the mean of its divisors is an integer number (3441318840).

Almost surely, 2^20607425409 is an apocalyptic number.

It is an amenable number.

20607425409 is a deficient number, since it is larger than the sum of its proper divisors (6923125311).

20607425409 is a wasteful number, since it uses less digits than its factorization.

20607425409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495879.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20607425409 in words is "twenty billion, six hundred seven million, four hundred twenty-five thousand, four hundred nine".