28657134007 has 2 divisors, whose sum is σ = 28657134008. Its totient is φ = 28657134006.

The previous prime is 28657134001. The next prime is 28657134017. The reversal of 28657134007 is 70043175682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28657134007 - 2³¹ = 26509650359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28657134001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14328567003 + 14328567004.

It is an arithmetic number, because the mean of its divisors is an integer number (14328567004).

Almost surely, 2^28657134007 is an apocalyptic number.

28657134007 is a deficient number, since it is larger than the sum of its proper divisors (1).

28657134007 is an equidigital number, since it uses as much as digits as its factorization.

28657134007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 28657134007 in words is "twenty-eight billion, six hundred fifty-seven million, one hundred thirty-four thousand, seven".