126828805644 has 60 divisors (see below), whose sum is σ = 339266182024. Its totient is φ = 41293094976.

The previous prime is 126828805603. The next prime is 126828805667. The reversal of 126828805644 is 446508828621.

126828805644 is a `hidden beast` number, since 12 + 68 + 2 + 8 + 8 + 0 + 564 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4537777 + ... + 4565640.

Almost surely, 2^126828805644 is an apocalyptic number.

It is an amenable number.

126828805644 is an abundant number, since it is smaller than the sum of its proper divisors (212437376380).

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

126828805644 is a wasteful number, since it uses less digits than its factorization.

126828805644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9103476 (or 9103465 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 126828805644 in words is "one hundred twenty-six billion, eight hundred twenty-eight million, eight hundred five thousand, six hundred forty-four".