812270894087 has 2 divisors, whose sum is σ = 812270894088. Its totient is φ = 812270894086.

The previous prime is 812270894041. The next prime is 812270894089. The reversal of 812270894087 is 780498072218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812270894087 - 2¹⁸ = 812270631943 is a prime.

Together with 812270894089, 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 (812270894089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406135447043 + 406135447044.

It is an arithmetic number, because the mean of its divisors is an integer number (406135447044).

Almost surely, 2^812270894087 is an apocalyptic number.

812270894087 is a deficient number, since it is larger than the sum of its proper divisors (1).

812270894087 is an equidigital number, since it uses as much as digits as its factorization.

812270894087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 812270894087 in words is "eight hundred twelve billion, two hundred seventy million, eight hundred ninety-four thousand, eighty-seven".