126432869476 has 9 divisors (see below), whose sum is σ = 221258766099. Its totient is φ = 63216079164.

The previous prime is 126432869473. The next prime is 126432869531. The reversal of 126432869476 is 674968234621.

The square root of 126432869476 is 355574.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126432869476.

It is not an unprimeable number, because it can be changed into a prime (126432869473) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 622255 + ... + 800041.

Almost surely, 2^126432869476 is an apocalyptic number.

126432869476 is the 355574-th square number.

It is an amenable number.

126432869476 is a deficient number, since it is larger than the sum of its proper divisors (94825896623).

126432869476 is an frugal number, since it uses more digits than its factorization.

126432869476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355578 (or 177789 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The spelling of 126432869476 in words is "one hundred twenty-six billion, four hundred thirty-two million, eight hundred sixty-nine thousand, four hundred seventy-six".