28363553307878 has 8 divisors (see below), whose sum is σ = 42550253645880. Its totient is φ = 14180135425920.

The previous prime is 28363553307877. The next prime is 28363553308031. The reversal of 28363553307878 is 87870335536382.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28363553307877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820592408 + ... + 820626971.

It is an arithmetic number, because the mean of its divisors is an integer number (5318781705735).

Almost surely, 2^{28363553307878} is an apocalyptic number.

28363553307878 is a deficient number, since it is larger than the sum of its proper divisors (14186700338002).

28363553307878 is a wasteful number, since it uses less digits than its factorization.

28363553307878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641228022.

The product of its (nonzero) digits is 609638400, while the sum is 68.

The spelling of 28363553307878 in words is "twenty-eight trillion, three hundred sixty-three billion, five hundred fifty-three million, three hundred seven thousand, eight hundred seventy-eight".