28316477478 has 8 divisors (see below), whose sum is σ = 56632954968. Its totient is φ = 9438825824.

The previous prime is 28316477447. The next prime is 28316477479. The reversal of 28316477478 is 87477461382.

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

28316477478 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28316477479) 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, 2359706451 + ... + 2359706462.

It is an arithmetic number, because the mean of its divisors is an integer number (7079119371).

Almost surely, 2^28316477478 is an apocalyptic number.

28316477478 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.

28316477478 is a wasteful number, since it uses less digits than its factorization.

28316477478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719412918.

The product of its digits is 12644352, while the sum is 57.

The spelling of 28316477478 in words is "twenty-eight billion, three hundred sixteen million, four hundred seventy-seven thousand, four hundred seventy-eight".