20126325752446 has 4 divisors (see below), whose sum is σ = 30189488628672. Its totient is φ = 10063162876222.

The previous prime is 20126325752441. The next prime is 20126325752471. The reversal of 20126325752446 is 64425752362102.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 20126325752446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126325752441) 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 as a sum of consecutive naturals, namely, 5031581438110 + ... + 5031581438113.

It is an arithmetic number, because the mean of its divisors is an integer number (7547372157168).

Almost surely, 2^{20126325752446} is an apocalyptic number.

20126325752446 is a deficient number, since it is larger than the sum of its proper divisors (10063162876226).

20126325752446 is a wasteful number, since it uses less digits than its factorization.

20126325752446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063162876225.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 20126325752446 in words is "twenty trillion, one hundred twenty-six billion, three hundred twenty-five million, seven hundred fifty-two thousand, four hundred forty-six".