20463446453 has 4 divisors (see below), whose sum is σ = 20464272588. Its totient is φ = 20462620320.

The previous prime is 20463446417. The next prime is 20463446459. The reversal of 20463446453 is 35464436402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7450797124 + 13012649329 = 86318^2 + 114073^2 .

It is a cyclic number.

It is not a de Polignac number, because 20463446453 - 2⁶ = 20463446389 is a prime.

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 20463446453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463446459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374726 + ... + 425847.

It is an arithmetic number, because the mean of its divisors is an integer number (5116068147).

Almost surely, 2^20463446453 is an apocalyptic number.

It is an amenable number.

20463446453 is a deficient number, since it is larger than the sum of its proper divisors (826135).

20463446453 is an equidigital number, since it uses as much as digits as its factorization.

20463446453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826134.

The product of its (nonzero) digits is 829440, while the sum is 41.

The spelling of 20463446453 in words is "twenty billion, four hundred sixty-three million, four hundred forty-six thousand, four hundred fifty-three".