28857439367 has 2 divisors, whose sum is σ = 28857439368. Its totient is φ = 28857439366.

The previous prime is 28857439357. The next prime is 28857439409. The reversal of 28857439367 is 76393475882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28857439367 - 2¹⁰ = 28857438343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28857439357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14428719683 + 14428719684.

It is an arithmetic number, because the mean of its divisors is an integer number (14428719684).

Almost surely, 2^28857439367 is an apocalyptic number.

28857439367 is a deficient number, since it is larger than the sum of its proper divisors (1).

28857439367 is an equidigital number, since it uses as much as digits as its factorization.

28857439367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60963840, while the sum is 62.

The spelling of 28857439367 in words is "twenty-eight billion, eight hundred fifty-seven million, four hundred thirty-nine thousand, three hundred sixty-seven".