28074115663 has 8 divisors (see below), whose sum is σ = 30638486736. Its totient is φ = 25511774400.

The previous prime is 28074115661. The next prime is 28074115697. The reversal of 28074115663 is 36651147082.

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 28074115663 - 2¹ = 28074115661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28074115661) 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, 478456 + ... + 533917.

It is an arithmetic number, because the mean of its divisors is an integer number (3829810842).

Almost surely, 2^28074115663 is an apocalyptic number.

28074115663 is a deficient number, since it is larger than the sum of its proper divisors (2564371073).

28074115663 is a wasteful number, since it uses less digits than its factorization.

28074115663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014905.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 28074115663 in words is "twenty-eight billion, seventy-four million, one hundred fifteen thousand, six hundred sixty-three".