870646577391827 has 2 divisors, whose sum is σ = 870646577391828. Its totient is φ = 870646577391826.

The previous prime is 870646577391763. The next prime is 870646577391841. The reversal of 870646577391827 is 728193775646078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870646577391827 - 2⁶ = 870646577391763 is a prime.

It is not a weakly prime, because it can be changed into another prime (870646577391727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435323288695913 + 435323288695914.

It is an arithmetic number, because the mean of its divisors is an integer number (435323288695914).

It is a 1-persistent number, because it is pandigital, but 2⋅870646577391827 = 1741293154783654 is not.

Almost surely, 2^{870646577391827} is an apocalyptic number.

870646577391827 is a deficient number, since it is larger than the sum of its proper divisors (1).

870646577391827 is an equidigital number, since it uses as much as digits as its factorization.

870646577391827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5974456320, while the sum is 80.

The spelling of 870646577391827 in words is "eight hundred seventy trillion, six hundred forty-six billion, five hundred seventy-seven million, three hundred ninety-one thousand, eight hundred twenty-seven".