28773256263805 has 8 divisors (see below), whose sum is σ = 34527945663072. Its totient is φ = 23018579580048.

The previous prime is 28773256263767. The next prime is 28773256263811. The reversal of 28773256263805 is 50836265237782.

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 28773256263805 - 2¹⁵ = 28773256231037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2832994 + ... + 8097676.

It is an arithmetic number, because the mean of its divisors is an integer number (4315993207884).

Almost surely, 2^{28773256263805} is an apocalyptic number.

It is an amenable number.

28773256263805 is a deficient number, since it is larger than the sum of its proper divisors (5754689399267).

28773256263805 is a wasteful number, since it uses less digits than its factorization.

28773256263805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6357755.

The product of its (nonzero) digits is 203212800, while the sum is 64.

The spelling of 28773256263805 in words is "twenty-eight trillion, seven hundred seventy-three billion, two hundred fifty-six million, two hundred sixty-three thousand, eight hundred five".