28857305467 has 2 divisors, whose sum is σ = 28857305468. Its totient is φ = 28857305466.

The previous prime is 28857305447. The next prime is 28857305489. The reversal of 28857305467 is 76450375882.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28857305467 is a prime.

It is not a weakly prime, because it can be changed into another prime (28857305447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14428652733 + 14428652734.

It is an arithmetic number, because the mean of its divisors is an integer number (14428652734).

Almost surely, 2^28857305467 is an apocalyptic number.

28857305467 is a deficient number, since it is larger than the sum of its proper divisors (1).

28857305467 is an equidigital number, since it uses as much as digits as its factorization.

28857305467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 28857305467 in words is "twenty-eight billion, eight hundred fifty-seven million, three hundred five thousand, four hundred sixty-seven".