28930191803 has 2 divisors, whose sum is σ = 28930191804. Its totient is φ = 28930191802.

The previous prime is 28930191799. The next prime is 28930191811. The reversal of 28930191803 is 30819103982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28930191803 - 2² = 28930191799 is a prime.

It is not a weakly prime, because it can be changed into another prime (28930191853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14465095901 + 14465095902.

It is an arithmetic number, because the mean of its divisors is an integer number (14465095902).

Almost surely, 2^28930191803 is an apocalyptic number.

28930191803 is a deficient number, since it is larger than the sum of its proper divisors (1).

28930191803 is an equidigital number, since it uses as much as digits as its factorization.

28930191803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 28930191803 in words is "twenty-eight billion, nine hundred thirty million, one hundred ninety-one thousand, eight hundred three".