28784682270167 has 2 divisors, whose sum is σ = 28784682270168. Its totient is φ = 28784682270166.

The previous prime is 28784682270137. The next prime is 28784682270209. The reversal of 28784682270167 is 76107228648782.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28784682270167 - 2⁶ = 28784682270103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28784682270097 and 28784682270106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28784682270137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14392341135083 + 14392341135084.

It is an arithmetic number, because the mean of its divisors is an integer number (14392341135084).

Almost surely, 2^{28784682270167} is an apocalyptic number.

28784682270167 is a deficient number, since it is larger than the sum of its proper divisors (1).

28784682270167 is an equidigital number, since it uses as much as digits as its factorization.

28784682270167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202309632, while the sum is 68.

The spelling of 28784682270167 in words is "twenty-eight trillion, seven hundred eighty-four billion, six hundred eighty-two million, two hundred seventy thousand, one hundred sixty-seven".