871450728051166 has 16 divisors (see below), whose sum is σ = 1339389149666400. Its totient is φ = 424992927589120.

The previous prime is 871450728051143. The next prime is 871450728051199. The reversal of 871450728051166 is 661150827054178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312022626 + ... + 1312686661.

It is an arithmetic number, because the mean of its divisors is an integer number (83711821854150).

Almost surely, 2^{871450728051166} is an apocalyptic number.

871450728051166 is a deficient number, since it is larger than the sum of its proper divisors (467938421615234).

871450728051166 is a wasteful number, since it uses less digits than its factorization.

871450728051166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624713379.

The product of its (nonzero) digits is 22579200, while the sum is 61.

The spelling of 871450728051166 in words is "eight hundred seventy-one trillion, four hundred fifty billion, seven hundred twenty-eight million, fifty-one thousand, one hundred sixty-six".