871034420607428 has 72 divisors (see below), whose sum is σ = 1914850092372672. Its totient is φ = 339361562232000.

The previous prime is 871034420607391. The next prime is 871034420607457. The reversal of 871034420607428 is 824706024430178.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498318863 + ... + 500063753.

Almost surely, 2^{871034420607428} is an apocalyptic number.

It is an amenable number.

871034420607428 is an abundant number, since it is smaller than the sum of its proper divisors (1043815671765244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871034420607428 is a wasteful number, since it uses less digits than its factorization.

871034420607428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892265 (or 1892252 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 56.

The spelling of 871034420607428 in words is "eight hundred seventy-one trillion, thirty-four billion, four hundred twenty million, six hundred seven thousand, four hundred twenty-eight".