28907516413 has 2 divisors, whose sum is σ = 28907516414. Its totient is φ = 28907516412.

The previous prime is 28907516369. The next prime is 28907516447. The reversal of 28907516413 is 31461570982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27271880164 + 1635636249 = 165142^2 + 40443^2 .

It is a cyclic number.

It is not a de Polignac number, because 28907516413 - 2¹⁷ = 28907385341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28907519413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14453758206 + 14453758207.

It is an arithmetic number, because the mean of its divisors is an integer number (14453758207).

It is a 1-persistent number, because it is pandigital, but 2⋅28907516413 = 57815032826 is not.

Almost surely, 2^28907516413 is an apocalyptic number.

It is an amenable number.

28907516413 is a deficient number, since it is larger than the sum of its proper divisors (1).

28907516413 is an equidigital number, since it uses as much as digits as its factorization.

28907516413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 28907516413 in words is "twenty-eight billion, nine hundred seven million, five hundred sixteen thousand, four hundred thirteen".