28475452507 has 2 divisors, whose sum is σ = 28475452508. Its totient is φ = 28475452506.

The previous prime is 28475452487. The next prime is 28475452529. The reversal of 28475452507 is 70525457482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28475452507 - 2¹¹ = 28475450459 is a prime.

It is not a weakly prime, because it can be changed into another prime (28475452807) 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 as a sum of consecutive naturals, namely, 14237726253 + 14237726254.

It is an arithmetic number, because the mean of its divisors is an integer number (14237726254).

Almost surely, 2^28475452507 is an apocalyptic number.

28475452507 is a deficient number, since it is larger than the sum of its proper divisors (1).

28475452507 is an equidigital number, since it uses as much as digits as its factorization.

28475452507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136000, while the sum is 49.

The spelling of 28475452507 in words is "twenty-eight billion, four hundred seventy-five million, four hundred fifty-two thousand, five hundred seven".