63789478959 has 8 divisors (see below), whose sum is σ = 85054072240. Its totient is φ = 42525602496.

The previous prime is 63789478957. The next prime is 63789478997. The reversal of 63789478959 is 95987498736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63789478959 - 2¹ = 63789478957 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 (63789478957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83427 + ... + 366795.

It is an arithmetic number, because the mean of its divisors is an integer number (10631759030).

Almost surely, 2^63789478959 is an apocalyptic number.

63789478959 is a deficient number, since it is larger than the sum of its proper divisors (21264593281).

63789478959 is a wasteful number, since it uses less digits than its factorization.

63789478959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358409.

The product of its digits is 823011840, while the sum is 75.

The spelling of 63789478959 in words is "sixty-three billion, seven hundred eighty-nine million, four hundred seventy-eight thousand, nine hundred fifty-nine".