28814158785 has 16 divisors (see below), whose sum is σ = 46104784704. Its totient is φ = 15366841152.

The previous prime is 28814158781. The next prime is 28814158819. The reversal of 28814158785 is 58785141882.

It is not a de Polignac number, because 28814158785 - 2² = 28814158781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28814158781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534739 + ... + 586151.

It is an arithmetic number, because the mean of its divisors is an integer number (2881549044).

Almost surely, 2^28814158785 is an apocalyptic number.

It is an amenable number.

28814158785 is a deficient number, since it is larger than the sum of its proper divisors (17290625919).

28814158785 is a wasteful number, since it uses less digits than its factorization.

28814158785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88784.

The product of its digits is 5734400, while the sum is 57.

The spelling of 28814158785 in words is "twenty-eight billion, eight hundred fourteen million, one hundred fifty-eight thousand, seven hundred eighty-five".