28018343599 has 2 divisors, whose sum is σ = 28018343600. Its totient is φ = 28018343598.

The previous prime is 28018343593. The next prime is 28018343623. The reversal of 28018343599 is 99534381082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28018343599 - 2¹³ = 28018335407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28018343593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14009171799 + 14009171800.

It is an arithmetic number, because the mean of its divisors is an integer number (14009171800).

Almost surely, 2^28018343599 is an apocalyptic number.

28018343599 is a deficient number, since it is larger than the sum of its proper divisors (1).

28018343599 is an equidigital number, since it uses as much as digits as its factorization.

28018343599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 28018343599 in words is "twenty-eight billion, eighteen million, three hundred forty-three thousand, five hundred ninety-nine".