28755454807 has 2 divisors, whose sum is σ = 28755454808. Its totient is φ = 28755454806.

The previous prime is 28755454781. The next prime is 28755454811. The reversal of 28755454807 is 70845455782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28755454807 - 2¹⁵ = 28755422039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28755454817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14377727403 + 14377727404.

It is an arithmetic number, because the mean of its divisors is an integer number (14377727404).

Almost surely, 2^28755454807 is an apocalyptic number.

28755454807 is a deficient number, since it is larger than the sum of its proper divisors (1).

28755454807 is an equidigital number, since it uses as much as digits as its factorization.

28755454807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544000, while the sum is 55.

The spelling of 28755454807 in words is "twenty-eight billion, seven hundred fifty-five million, four hundred fifty-four thousand, eight hundred seven".