287928828071 has 2 divisors, whose sum is σ = 287928828072. Its totient is φ = 287928828070.

The previous prime is 287928828053. The next prime is 287928828107. The reversal of 287928828071 is 170828829782.

Together with next prime (287928828107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 287928828071 - 2¹⁸ = 287928565927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 287928827995 and 287928828013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287928821071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143964414035 + 143964414036.

It is an arithmetic number, because the mean of its divisors is an integer number (143964414036).

Almost surely, 2^287928828071 is an apocalyptic number.

287928828071 is a deficient number, since it is larger than the sum of its proper divisors (1).

287928828071 is an equidigital number, since it uses as much as digits as its factorization.

287928828071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14450688, while the sum is 62.

The spelling of 287928828071 in words is "two hundred eighty-seven billion, nine hundred twenty-eight million, eight hundred twenty-eight thousand, seventy-one".