126828221288 has 16 divisors (see below), whose sum is σ = 237889335780. Its totient is φ = 63391065088.

The previous prime is 126828221281. The next prime is 126828221321. The reversal of 126828221288 is 882122828621.

It can be written as a sum of positive squares in 2 ways, for example, as 126339015364 + 489205924 = 355442^2 + 22118^2 .

It is not an unprimeable number, because it can be changed into a prime (126828221281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2857295 + ... + 2901342.

Almost surely, 2^126828221288 is an apocalyptic number.

It is an amenable number.

126828221288 is a deficient number, since it is larger than the sum of its proper divisors (111061114492).

126828221288 is a wasteful number, since it uses less digits than its factorization.

126828221288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5761396 (or 5761392 counting only the distinct ones).

The product of its digits is 786432, while the sum is 50.

The spelling of 126828221288 in words is "one hundred twenty-six billion, eight hundred twenty-eight million, two hundred twenty-one thousand, two hundred eighty-eight".