126513726823724 has 24 divisors (see below), whose sum is σ = 221840482133760. Its totient is φ = 63130809154896.

The previous prime is 126513726823723. The next prime is 126513726823747. The reversal of 126513726823724 is 427328627315621.

It is not an unprimeable number, because it can be changed into a prime (126513726823723) 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 7 ways as a sum of consecutive naturals, for example, 3097712 + ... + 16205655.

It is an arithmetic number, because the mean of its divisors is an integer number (9243353422240).

Almost surely, 2^{126513726823724} is an apocalyptic number.

It is an amenable number.

126513726823724 is a deficient number, since it is larger than the sum of its proper divisors (95326755310036).

126513726823724 is a wasteful number, since it uses less digits than its factorization.

126513726823724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19306637 (or 19306635 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 59.

The spelling of 126513726823724 in words is "one hundred twenty-six trillion, five hundred thirteen billion, seven hundred twenty-six million, eight hundred twenty-three thousand, seven hundred twenty-four".