871345351217045 has 16 divisors (see below), whose sum is σ = 1053574900640640. Its totient is φ = 691782781481664.

The previous prime is 871345351217041. The next prime is 871345351217087. The reversal of 871345351217045 is 540712153543178.

It is a cyclic number.

It is not a de Polignac number, because 871345351217045 - 2² = 871345351217041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871345351217041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842397002 + ... + 843430731.

It is an arithmetic number, because the mean of its divisors is an integer number (65848431290040).

Almost surely, 2^{871345351217045} is an apocalyptic number.

It is an amenable number.

871345351217045 is a deficient number, since it is larger than the sum of its proper divisors (182229549423595).

871345351217045 is a wasteful number, since it uses less digits than its factorization.

871345351217045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685828524.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 871345351217045 in words is "eight hundred seventy-one trillion, three hundred forty-five billion, three hundred fifty-one million, two hundred seventeen thousand, forty-five".