1228170677807 has 2 divisors, whose sum is σ = 1228170677808. Its totient is φ = 1228170677806.

The previous prime is 1228170677759. The next prime is 1228170677809. The reversal of 1228170677807 is 7087760718221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228170677807 - 2⁶ = 1228170677743 is a prime.

Together with 1228170677809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228170677809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614085338903 + 614085338904.

It is an arithmetic number, because the mean of its divisors is an integer number (614085338904).

Almost surely, 2^{1228170677807} is an apocalyptic number.

1228170677807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228170677807 is an equidigital number, since it uses as much as digits as its factorization.

1228170677807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3687936, while the sum is 56.

The spelling of 1228170677807 in words is "one trillion, two hundred twenty-eight billion, one hundred seventy million, six hundred seventy-seven thousand, eight hundred seven".