126044880784 has 135 divisors (see below), whose sum is σ = 272391967057. Its totient is φ = 56486374912.

The previous prime is 126044880779. The next prime is 126044880791. The reversal of 126044880784 is 487088440621.

The square root of 126044880784 is 355028.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 98131827600 + 27913053184 = 313260^2 + 167072^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 555263679 + ... + 555263905.

Almost surely, 2^126044880784 is an apocalyptic number.

126044880784 is the 355028-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126044880784

126044880784 is an abundant number, since it is smaller than the sum of its proper divisors (146347086273).

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

126044880784 is an equidigital number, since it uses as much as digits as its factorization.

126044880784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 126044880784 in words is "one hundred twenty-six billion, forty-four million, eight hundred eighty thousand, seven hundred eighty-four".