870675043397429 has 2 divisors, whose sum is σ = 870675043397430. Its totient is φ = 870675043397428.

The previous prime is 870675043397377. The next prime is 870675043397461. The reversal of 870675043397429 is 924793340576078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741342310670404 + 129332732727025 = 27227602^2 + 11372455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870675043397429 is a prime.

It is a super-2 number, since 2×870675043397429² (a number of 31 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870675043397629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435337521698714 + 435337521698715.

It is an arithmetic number, because the mean of its divisors is an integer number (435337521698715).

Almost surely, 2^{870675043397429} is an apocalyptic number.

It is an amenable number.

870675043397429 is a deficient number, since it is larger than the sum of its proper divisors (1).

870675043397429 is an equidigital number, since it uses as much as digits as its factorization.

870675043397429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920360960, while the sum is 74.

The spelling of 870675043397429 in words is "eight hundred seventy trillion, six hundred seventy-five billion, forty-three million, three hundred ninety-seven thousand, four hundred twenty-nine".