871780117659 has 32 divisors (see below), whose sum is σ = 1299305387520. Its totient is φ = 515332550400.

The previous prime is 871780117631. The next prime is 871780117661. The reversal of 871780117659 is 956711087178.

It is not a de Polignac number, because 871780117659 - 2¹⁹ = 871779593371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (871780117619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5316354 + ... + 5477880.

It is an arithmetic number, because the mean of its divisors is an integer number (40603293360).

Almost surely, 2^871780117659 is an apocalyptic number.

871780117659 is a deficient number, since it is larger than the sum of its proper divisors (427525269861).

871780117659 is a wasteful number, since it uses less digits than its factorization.

871780117659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165571.

The product of its (nonzero) digits is 5927040, while the sum is 60.

The spelling of 871780117659 in words is "eight hundred seventy-one billion, seven hundred eighty million, one hundred seventeen thousand, six hundred fifty-nine".