126705345648 has 40 divisors (see below), whose sum is σ = 374082450048. Its totient is φ = 36201527232.

The previous prime is 126705345623. The next prime is 126705345743. The reversal of 126705345648 is 846543507621.

It is a self number, because there is not a number n which added to its sum of digits gives 126705345648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188549286 + ... + 188549957.

Almost surely, 2^126705345648 is an apocalyptic number.

It is an amenable number.

126705345648 is an abundant number, since it is smaller than the sum of its proper divisors (247377104400).

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

126705345648 is a wasteful number, since it uses less digits than its factorization.

126705345648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377099261 (or 377099255 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 126705345648 in words is "one hundred twenty-six billion, seven hundred five million, three hundred forty-five thousand, six hundred forty-eight".