28107845501 has 2 divisors, whose sum is σ = 28107845502. Its totient is φ = 28107845500.

The previous prime is 28107845461. The next prime is 28107845573. The reversal of 28107845501 is 10554870182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27690624025 + 417221476 = 166405^2 + 20426^2 .

It is a cyclic number.

It is not a de Polignac number, because 28107845501 - 2¹⁰ = 28107844477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28107845201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14053922750 + 14053922751.

It is an arithmetic number, because the mean of its divisors is an integer number (14053922751).

Almost surely, 2^28107845501 is an apocalyptic number.

It is an amenable number.

28107845501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28107845501 is an equidigital number, since it uses as much as digits as its factorization.

28107845501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 28107845501 in words is "twenty-eight billion, one hundred seven million, eight hundred forty-five thousand, five hundred one".