689111021012147 has 2 divisors, whose sum is σ = 689111021012148. Its totient is φ = 689111021012146.

The previous prime is 689111021012077. The next prime is 689111021012159. The reversal of 689111021012147 is 741210120111986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 689111021012147 - 2¹² = 689111021008051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 689111021012098 and 689111021012107.

It is not a weakly prime, because it can be changed into another prime (689111021012747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344555510506073 + 344555510506074.

It is an arithmetic number, because the mean of its divisors is an integer number (344555510506074).

Almost surely, 2^{689111021012147} is an apocalyptic number.

689111021012147 is a deficient number, since it is larger than the sum of its proper divisors (1).

689111021012147 is an equidigital number, since it uses as much as digits as its factorization.

689111021012147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 689111021012147 in words is "six hundred eighty-nine trillion, one hundred eleven billion, twenty-one million, twelve thousand, one hundred forty-seven".