28076840407 has 12 divisors (see below), whose sum is σ = 35629979976. Its totient is φ = 21878057040.

The previous prime is 28076840383. The next prime is 28076840423. The reversal of 28076840407 is 70404867082.

It is a de Polignac number, because none of the positive numbers 2^k-28076840407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076840437) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26044768 + ... + 26045845.

It is an arithmetic number, because the mean of its divisors is an integer number (2969164998).

Almost surely, 2^28076840407 is an apocalyptic number.

28076840407 is a deficient number, since it is larger than the sum of its proper divisors (7553139569).

28076840407 is a wasteful number, since it uses less digits than its factorization.

28076840407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52090638 (or 52090631 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 28076840407 in words is "twenty-eight billion, seventy-six million, eight hundred forty thousand, four hundred seven".