871034417842555 has 16 divisors (see below), whose sum is σ = 1050605927388864. Its totient is φ = 693251513136000.

The previous prime is 871034417842549. The next prime is 871034417842607. The reversal of 871034417842555 is 555248714430178.

It is not a de Polignac number, because 871034417842555 - 2⁴⁹ = 308084464421243 is a prime.

It is a super-2 number, since 2×871034417842555² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7157196 + ... + 42347305.

It is an arithmetic number, because the mean of its divisors is an integer number (65662870461804).

Almost surely, 2^{871034417842555} is an apocalyptic number.

871034417842555 is a deficient number, since it is larger than the sum of its proper divisors (179571509546309).

871034417842555 is a wasteful number, since it uses less digits than its factorization.

871034417842555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49522566.

The product of its (nonzero) digits is 150528000, while the sum is 64.

The spelling of 871034417842555 in words is "eight hundred seventy-one trillion, thirty-four billion, four hundred seventeen million, eight hundred forty-two thousand, five hundred fifty-five".