28475452487 has 2 divisors, whose sum is σ = 28475452488. Its totient is φ = 28475452486.

The previous prime is 28475452463. The next prime is 28475452507. The reversal of 28475452487 is 78425457482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28475452487 - 2²⁸ = 28207017031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28475452457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14237726243 + 14237726244.

It is an arithmetic number, because the mean of its divisors is an integer number (14237726244).

Almost surely, 2^28475452487 is an apocalyptic number.

28475452487 is a deficient number, since it is larger than the sum of its proper divisors (1).

28475452487 is an equidigital number, since it uses as much as digits as its factorization.

28475452487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20070400, while the sum is 56.

The spelling of 28475452487 in words is "twenty-eight billion, four hundred seventy-five million, four hundred fifty-two thousand, four hundred eighty-seven".