127881856 has 32 divisors (see below), whose sum is σ = 268178400. Its totient is φ = 60574464.

The previous prime is 127881847. The next prime is 127881869. The reversal of 127881856 is 658188721.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23860 + ... + 28723.

It is an arithmetic number, because the mean of its divisors is an integer number (8380575).

Almost surely, 2^127881856 is an apocalyptic number.

127881856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

127881856 is an abundant number, since it is smaller than the sum of its proper divisors (140296544).

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

127881856 is an equidigital number, since it uses as much as digits as its factorization.

127881856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52616 (or 52604 counting only the distinct ones).

The product of its digits is 215040, while the sum is 46.

The square root of 127881856 is about 11308.4860171466. The cubic root of 127881856 is about 503.8133179446.

The spelling of 127881856 in words is "one hundred twenty-seven million, eight hundred eighty-one thousand, eight hundred fifty-six".