28158522703 has 2 divisors, whose sum is σ = 28158522704. Its totient is φ = 28158522702.

The previous prime is 28158522673. The next prime is 28158522719. The reversal of 28158522703 is 30722585182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28158522703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28158522703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28158523703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14079261351 + 14079261352.

It is an arithmetic number, because the mean of its divisors is an integer number (14079261352).

Almost surely, 2^28158522703 is an apocalyptic number.

28158522703 is a deficient number, since it is larger than the sum of its proper divisors (1).

28158522703 is an equidigital number, since it uses as much as digits as its factorization.

28158522703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 28158522703 in words is "twenty-eight billion, one hundred fifty-eight million, five hundred twenty-two thousand, seven hundred three".