28416239413 has 2 divisors, whose sum is σ = 28416239414. Its totient is φ = 28416239412.

The previous prime is 28416239399. The next prime is 28416239437. The reversal of 28416239413 is 31493261482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23028973009 + 5387266404 = 151753^2 + 73398^2 .

It is a cyclic number.

It is not a de Polignac number, because 28416239413 - 2⁹ = 28416238901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28416239413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28416219413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14208119706 + 14208119707.

It is an arithmetic number, because the mean of its divisors is an integer number (14208119707).

Almost surely, 2^28416239413 is an apocalyptic number.

It is an amenable number.

28416239413 is a deficient number, since it is larger than the sum of its proper divisors (1).

28416239413 is an equidigital number, since it uses as much as digits as its factorization.

28416239413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The spelling of 28416239413 in words is "twenty-eight billion, four hundred sixteen million, two hundred thirty-nine thousand, four hundred thirteen".