28438608063 has 8 divisors (see below), whose sum is σ = 38097851776. Its totient is φ = 18869218200.

The previous prime is 28438608047. The next prime is 28438608071. The reversal of 28438608063 is 36080683482.

It is a happy number.

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

It is not a de Polignac number, because 28438608063 - 2⁴ = 28438608047 is a prime.

It is a super-3 number, since 3×28438608063³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28438604063) 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, 22462723 + ... + 22463988.

It is an arithmetic number, because the mean of its divisors is an integer number (4762231472).

Almost surely, 2^28438608063 is an apocalyptic number.

28438608063 is a deficient number, since it is larger than the sum of its proper divisors (9659243713).

28438608063 is a wasteful number, since it uses less digits than its factorization.

28438608063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44926925.

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 28438608063 in words is "twenty-eight billion, four hundred thirty-eight million, six hundred eight thousand, sixty-three".