870891087067 has 2 divisors, whose sum is σ = 870891087068. Its totient is φ = 870891087066.

The previous prime is 870891087047. The next prime is 870891087127. The reversal of 870891087067 is 760780198078.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870891087067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870891086996 and 870891087014.

It is not a weakly prime, because it can be changed into another prime (870891087037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435445543533 + 435445543534.

It is an arithmetic number, because the mean of its divisors is an integer number (435445543534).

Almost surely, 2^870891087067 is an apocalyptic number.

870891087067 is a deficient number, since it is larger than the sum of its proper divisors (1).

870891087067 is an equidigital number, since it uses as much as digits as its factorization.

870891087067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9483264, while the sum is 61.

The spelling of 870891087067 in words is "eight hundred seventy billion, eight hundred ninety-one million, eighty-seven thousand, sixty-seven".