126564234573 has 16 divisors (see below), whose sum is σ = 193005823616. Its totient is φ = 72267655680.

The previous prime is 126564234569. The next prime is 126564234581. The reversal of 126564234573 is 375432465621.

It is a happy number.

It is not a de Polignac number, because 126564234573 - 2² = 126564234569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126564234373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2253436 + ... + 2308917.

It is an arithmetic number, because the mean of its divisors is an integer number (12062863976).

Almost surely, 2^126564234573 is an apocalyptic number.

It is an amenable number.

126564234573 is a deficient number, since it is larger than the sum of its proper divisors (66441589043).

126564234573 is a wasteful number, since it uses less digits than its factorization.

126564234573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563684.

The product of its digits is 3628800, while the sum is 48.

The spelling of 126564234573 in words is "one hundred twenty-six billion, five hundred sixty-four million, two hundred thirty-four thousand, five hundred seventy-three".