127945686856 has 32 divisors (see below), whose sum is σ = 258475392000. Its totient is φ = 59023621440.

The previous prime is 127945686833. The next prime is 127945686859. The reversal of 127945686856 is 658686549721.

It is a super-2 number, since 2×127945686856² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127945686791 and 127945686800.

It is not an unprimeable number, because it can be changed into a prime (127945686859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74760 + ... + 511351.

It is an arithmetic number, because the mean of its divisors is an integer number (8077356000).

Almost surely, 2^127945686856 is an apocalyptic number.

It is an amenable number.

127945686856 is an abundant number, since it is smaller than the sum of its proper divisors (130529705144).

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

127945686856 is a wasteful number, since it uses less digits than its factorization.

127945686856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588229 (or 588225 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 67.

The spelling of 127945686856 in words is "one hundred twenty-seven billion, nine hundred forty-five million, six hundred eighty-six thousand, eight hundred fifty-six".