28805116774870 has 8 divisors (see below), whose sum is σ = 51849210194784. Its totient is φ = 11522046709944.

The previous prime is 28805116774853. The next prime is 28805116774871. The reversal of 28805116774870 is 7847761150882.

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 (28805116774871) 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, 1440255838734 + ... + 1440255838753.

It is an arithmetic number, because the mean of its divisors is an integer number (6481151274348).

Almost surely, 2^{28805116774870} is an apocalyptic number.

28805116774870 is a deficient number, since it is larger than the sum of its proper divisors (23044093419914).

28805116774870 is a wasteful number, since it uses less digits than its factorization.

28805116774870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880511677494.

The product of its (nonzero) digits is 42147840, while the sum is 64.

The spelling of 28805116774870 in words is "twenty-eight trillion, eight hundred five billion, one hundred sixteen million, seven hundred seventy-four thousand, eight hundred seventy".