28298932919 has 2 divisors, whose sum is σ = 28298932920. Its totient is φ = 28298932918.

The previous prime is 28298932897. The next prime is 28298932951. The reversal of 28298932919 is 91923989282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28298932919 - 2²⁰ = 28297884343 is a prime.

It is a super-2 number, since 2×28298932919² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28298932619) 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, 14149466459 + 14149466460.

It is an arithmetic number, because the mean of its divisors is an integer number (14149466460).

Almost surely, 2^28298932919 is an apocalyptic number.

28298932919 is a deficient number, since it is larger than the sum of its proper divisors (1).

28298932919 is an equidigital number, since it uses as much as digits as its factorization.

28298932919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 62.

The spelling of 28298932919 in words is "twenty-eight billion, two hundred ninety-eight million, nine hundred thirty-two thousand, nine hundred nineteen".