63425583709 has 8 divisors (see below), whose sum is σ = 64092015680. Its totient is φ = 62759408256.

The previous prime is 63425583673. The next prime is 63425583719. The reversal of 63425583709 is 90738552436.

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 63425583709 - 2⁹ = 63425583197 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 (63425583719) 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, 454912 + ... + 577750.

It is an arithmetic number, because the mean of its divisors is an integer number (8011501960).

Almost surely, 2^63425583709 is an apocalyptic number.

It is an amenable number.

63425583709 is a deficient number, since it is larger than the sum of its proper divisors (666431971).

63425583709 is a wasteful number, since it uses less digits than its factorization.

63425583709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128259.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 63425583709 in words is "sixty-three billion, four hundred twenty-five million, five hundred eighty-three thousand, seven hundred nine".