870645484860427 has 2 divisors, whose sum is σ = 870645484860428. Its totient is φ = 870645484860426.

The previous prime is 870645484860421. The next prime is 870645484860439. The reversal of 870645484860427 is 724068484546078.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870645484860427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 870645484860427.

It is not a weakly prime, because it can be changed into another prime (870645484860421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435322742430213 + 435322742430214.

It is an arithmetic number, because the mean of its divisors is an integer number (435322742430214).

Almost surely, 2^{870645484860427} is an apocalyptic number.

870645484860427 is a deficient number, since it is larger than the sum of its proper divisors (1).

870645484860427 is an equidigital number, since it uses as much as digits as its factorization.

870645484860427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2312110080, while the sum is 73.

The spelling of 870645484860427 in words is "eight hundred seventy trillion, six hundred forty-five billion, four hundred eighty-four million, eight hundred sixty thousand, four hundred twenty-seven".