871377268668404 has 6 divisors (see below), whose sum is σ = 1524910220169714. Its totient is φ = 435688634334200.

The previous prime is 871377268668371. The next prime is 871377268668449. The reversal of 871377268668404 is 404866862773178.

It can be written as a sum of positive squares in only one way, i.e., 814578406272400 + 56798862396004 = 28540820^2 + 7536502^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108922158583547 + ... + 108922158583554.

It is an arithmetic number, because the mean of its divisors is an integer number (254151703361619).

Almost surely, 2^{871377268668404} is an apocalyptic number.

It is an amenable number.

871377268668404 is a deficient number, since it is larger than the sum of its proper divisors (653532951501310).

871377268668404 is a wasteful number, since it uses less digits than its factorization.

871377268668404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217844317167105 (or 217844317167103 counting only the distinct ones).

The product of its (nonzero) digits is 3641573376, while the sum is 77.

The spelling of 871377268668404 in words is "eight hundred seventy-one trillion, three hundred seventy-seven billion, two hundred sixty-eight million, six hundred sixty-eight thousand, four hundred four".