28947663359 has 8 divisors (see below), whose sum is σ = 31107937968. Its totient is φ = 26838218880.

The previous prime is 28947663319. The next prime is 28947663373. The reversal of 28947663359 is 95336674982.

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 28947663359 - 2⁸ = 28947663103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28947663319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12706352 + ... + 12708629.

It is an arithmetic number, because the mean of its divisors is an integer number (3888492246).

Almost surely, 2^28947663359 is an apocalyptic number.

28947663359 is a deficient number, since it is larger than the sum of its proper divisors (2160274609).

28947663359 is a wasteful number, since it uses less digits than its factorization.

28947663359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25415065.

The product of its digits is 58786560, while the sum is 62.

The spelling of 28947663359 in words is "twenty-eight billion, nine hundred forty-seven million, six hundred sixty-three thousand, three hundred fifty-nine".