127681646100 has 72 divisors (see below), whose sum is σ = 379410070368. Its totient is φ = 33128208000.

The previous prime is 127681646083. The next prime is 127681646129. The reversal of 127681646100 is 1646186721.

It is a congruent number.

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, 5740326 + ... + 5762525.

Almost surely, 2^127681646100 is an apocalyptic number.

127681646100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127681646100 is an abundant number, since it is smaller than the sum of its proper divisors (251728424268).

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

127681646100 is a wasteful number, since it uses less digits than its factorization.

127681646100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502905 (or 11502898 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 127681646100 in words is "one hundred twenty-seven billion, six hundred eighty-one million, six hundred forty-six thousand, one hundred".