28418707589 has 2 divisors, whose sum is σ = 28418707590. Its totient is φ = 28418707588.

The previous prime is 28418707529. The next prime is 28418707621. The reversal of 28418707589 is 98570781482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23598182689 + 4820524900 = 153617^2 + 69430^2 .

It is a cyclic number.

It is not a de Polignac number, because 28418707589 - 2¹² = 28418703493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28418707519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14209353794 + 14209353795.

It is an arithmetic number, because the mean of its divisors is an integer number (14209353795).

Almost surely, 2^28418707589 is an apocalyptic number.

It is an amenable number.

28418707589 is a deficient number, since it is larger than the sum of its proper divisors (1).

28418707589 is an equidigital number, since it uses as much as digits as its factorization.

28418707589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 28418707589 in words is "twenty-eight billion, four hundred eighteen million, seven hundred seven thousand, five hundred eighty-nine".