127828790664 has 16 divisors (see below), whose sum is σ = 319571976720. Its totient is φ = 42609596880.

The previous prime is 127828790651. The next prime is 127828790681. The reversal of 127828790664 is 466097828721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 127828790598 and 127828790607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663099782 + ... + 2663099829.

It is an arithmetic number, because the mean of its divisors is an integer number (19973248545).

Almost surely, 2^127828790664 is an apocalyptic number.

It is an amenable number.

127828790664 is an abundant number, since it is smaller than the sum of its proper divisors (191743186056).

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

127828790664 is a wasteful number, since it uses less digits than its factorization.

127828790664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326199620 (or 5326199616 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 127828790664 in words is "one hundred twenty-seven billion, eight hundred twenty-eight million, seven hundred ninety thousand, six hundred sixty-four".