28360553478 has 8 divisors (see below), whose sum is σ = 56721106968. Its totient is φ = 9453517824.

The previous prime is 28360553477. The next prime is 28360553537. The reversal of 28360553478 is 87435506382.

It is a happy number.

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

28360553478 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28360553478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28360553477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2363379451 + ... + 2363379462.

It is an arithmetic number, because the mean of its divisors is an integer number (7090138371).

Almost surely, 2^28360553478 is an apocalyptic number.

28360553478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28360553478 is a wasteful number, since it uses less digits than its factorization.

28360553478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726758918.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 28360553478 in words is "twenty-eight billion, three hundred sixty million, five hundred fifty-three thousand, four hundred seventy-eight".