28275781727419 has 2 divisors, whose sum is σ = 28275781727420. Its totient is φ = 28275781727418.

The previous prime is 28275781727269. The next prime is 28275781727429. The reversal of 28275781727419 is 91472718757282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28275781727419 - 2²³ = 28275773338811 is a prime.

It is a super-2 number, since 2×28275781727419² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28275781727429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14137890863709 + 14137890863710.

It is an arithmetic number, because the mean of its divisors is an integer number (14137890863710).

Almost surely, 2^{28275781727419} is an apocalyptic number.

28275781727419 is a deficient number, since it is larger than the sum of its proper divisors (1).

28275781727419 is an equidigital number, since it uses as much as digits as its factorization.

28275781727419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221276160, while the sum is 70.

The spelling of 28275781727419 in words is "twenty-eight trillion, two hundred seventy-five billion, seven hundred eighty-one million, seven hundred twenty-seven thousand, four hundred nineteen".