127871836164 has 72 divisors (see below), whose sum is σ = 344262766848. Its totient is φ = 41471935200.

The previous prime is 127871836153. The next prime is 127871836229. The reversal of 127871836164 is 461638178721.

127871836164 is a `hidden beast` number, since 1 + 2 + 7 + 8 + 7 + 18 + 3 + 616 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 127871836164.

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, 1741812 + ... + 1813739.

Almost surely, 2^127871836164 is an apocalyptic number.

It is an amenable number.

127871836164 is an abundant number, since it is smaller than the sum of its proper divisors (216390930684).

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

127871836164 is a wasteful number, since it uses less digits than its factorization.

127871836164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555607 (or 3555593 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 127871836164 in words is "one hundred twenty-seven billion, eight hundred seventy-one million, eight hundred thirty-six thousand, one hundred sixty-four".