126577985284 has 9 divisors (see below), whose sum is σ = 221512719477. Its totient is φ = 63288636864.

The previous prime is 126577985221. The next prime is 126577985323. The reversal of 126577985284 is 482589775621.

The square root of 126577985284 is 355778.

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

126577985284 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49204999684 + 77372985600 = 221822^2 + 278160^2 .

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 622612 + ... + 800500.

Almost surely, 2^126577985284 is an apocalyptic number.

126577985284 is the 355778-th square number.

It is an amenable number.

126577985284 is a deficient number, since it is larger than the sum of its proper divisors (94934734193).

126577985284 is an frugal number, since it uses more digits than its factorization.

126577985284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355782 (or 177891 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 64.

Multiplying 126577985284 by its sum of digits (64), we get a square (8100991058176 = 2846224²).

The spelling of 126577985284 in words is "one hundred twenty-six billion, five hundred seventy-seven million, nine hundred eighty-five thousand, two hundred eighty-four".