126885634464 has 48 divisors (see below), whose sum is σ = 342076821408. Its totient is φ = 41152096512.

The previous prime is 126885634459. The next prime is 126885634481. The reversal of 126885634464 is 464436588621.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17857602 + ... + 17864705.

It is an arithmetic number, because the mean of its divisors is an integer number (7126600446).

Almost surely, 2^126885634464 is an apocalyptic number.

It is an amenable number.

126885634464 is an abundant number, since it is smaller than the sum of its proper divisors (215191186944).

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

126885634464 is a wasteful number, since it uses less digits than its factorization.

126885634464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35722357 (or 35722349 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 57.

The spelling of 126885634464 in words is "one hundred twenty-six billion, eight hundred eighty-five million, six hundred thirty-four thousand, four hundred sixty-four".