28657134907 has 2 divisors, whose sum is σ = 28657134908. Its totient is φ = 28657134906.

The previous prime is 28657134851. The next prime is 28657134929. The reversal of 28657134907 is 70943175682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28657134907 - 2¹¹ = 28657132859 is a prime.

It is not a weakly prime, because it can be changed into another prime (28657134007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14328567453 + 14328567454.

It is an arithmetic number, because the mean of its divisors is an integer number (14328567454).

It is a 1-persistent number, because it is pandigital, but 2⋅28657134907 = 57314269814 is not.

Almost surely, 2^28657134907 is an apocalyptic number.

28657134907 is a deficient number, since it is larger than the sum of its proper divisors (1).

28657134907 is an equidigital number, since it uses as much as digits as its factorization.

28657134907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 28657134907 in words is "twenty-eight billion, six hundred fifty-seven million, one hundred thirty-four thousand, nine hundred seven".