28493048923 has 2 divisors, whose sum is σ = 28493048924. Its totient is φ = 28493048922.

The previous prime is 28493048921. The next prime is 28493048953. The reversal of 28493048923 is 32984039482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28493048923 - 2¹ = 28493048921 is a prime.

Together with 28493048921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28493048921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14246524461 + 14246524462.

It is an arithmetic number, because the mean of its divisors is an integer number (14246524462).

Almost surely, 2^28493048923 is an apocalyptic number.

28493048923 is a deficient number, since it is larger than the sum of its proper divisors (1).

28493048923 is an equidigital number, since it uses as much as digits as its factorization.

28493048923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 28493048923 in words is "twenty-eight billion, four hundred ninety-three million, forty-eight thousand, nine hundred twenty-three".