20463020453 has 4 divisors (see below), whose sum is σ = 20619226848. Its totient is φ = 20306814060.

The previous prime is 20463020441. The next prime is 20463020467. The reversal of 20463020453 is 35402036402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20463020453 - 2⁴ = 20463020437 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 (20463029453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78103001 + ... + 78103262.

It is an arithmetic number, because the mean of its divisors is an integer number (5154806712).

Almost surely, 2^20463020453 is an apocalyptic number.

It is an amenable number.

20463020453 is a deficient number, since it is larger than the sum of its proper divisors (156206395).

20463020453 is a wasteful number, since it uses less digits than its factorization.

20463020453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156206394.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 20463020453 its reverse (35402036402), we get a palindrome (55865056855).

The spelling of 20463020453 in words is "twenty billion, four hundred sixty-three million, twenty thousand, four hundred fifty-three".