28343367778 has 16 divisors (see below), whose sum is σ = 46436440896. Its totient is φ = 12867686640.

The previous prime is 28343367749. The next prime is 28343367791. The reversal of 28343367778 is 87776334382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764601 + ... + 800812.

It is an arithmetic number, because the mean of its divisors is an integer number (2902277556).

Almost surely, 2^28343367778 is an apocalyptic number.

28343367778 is a deficient number, since it is larger than the sum of its proper divisors (18093073118).

28343367778 is a wasteful number, since it uses less digits than its factorization.

28343367778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566249.

The product of its digits is 28449792, while the sum is 58.

The spelling of 28343367778 in words is "twenty-eight billion, three hundred forty-three million, three hundred sixty-seven thousand, seven hundred seventy-eight".