1028861402227 has 2 divisors, whose sum is σ = 1028861402228. Its totient is φ = 1028861402226.

The previous prime is 1028861402183. The next prime is 1028861402267. The reversal of 1028861402227 is 7222041688201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1028861402227 - 2¹⁹ = 1028860877939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1028861402267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514430701113 + 514430701114.

It is an arithmetic number, because the mean of its divisors is an integer number (514430701114).

Almost surely, 2^{1028861402227} is an apocalyptic number.

1028861402227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028861402227 is an equidigital number, since it uses as much as digits as its factorization.

1028861402227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 1028861402227 in words is "one trillion, twenty-eight billion, eight hundred sixty-one million, four hundred two thousand, two hundred twenty-seven".