28497275781119 has 2 divisors, whose sum is σ = 28497275781120. Its totient is φ = 28497275781118.

The previous prime is 28497275781077. The next prime is 28497275781131. The reversal of 28497275781119 is 91118757279482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28497275781119 - 2²⁰ = 28497274732543 is a prime.

It is a super-2 number, since 2×28497275781119² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28497275781199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14248637890559 + 14248637890560.

It is an arithmetic number, because the mean of its divisors is an integer number (14248637890560).

Almost surely, 2^{28497275781119} is an apocalyptic number.

28497275781119 is a deficient number, since it is larger than the sum of its proper divisors (1).

28497275781119 is an equidigital number, since it uses as much as digits as its factorization.

28497275781119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142248960, while the sum is 71.

The spelling of 28497275781119 in words is "twenty-eight trillion, four hundred ninety-seven billion, two hundred seventy-five million, seven hundred eighty-one thousand, one hundred nineteen".