20514434453 has 8 divisors (see below), whose sum is σ = 21387583008. Its totient is φ = 19659289104.

The previous prime is 20514434431. The next prime is 20514434467. The reversal of 20514434453 is 35443441502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20514434453 - 2¹⁸ = 20514172309 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 (20514434753) 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 7 ways as a sum of consecutive naturals, for example, 4498475 + ... + 4503032.

It is an arithmetic number, because the mean of its divisors is an integer number (2673447876).

Almost surely, 2^20514434453 is an apocalyptic number.

It is an amenable number.

20514434453 is a deficient number, since it is larger than the sum of its proper divisors (873148555).

20514434453 is an equidigital number, since it uses as much as digits as its factorization.

20514434453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9001603.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 20514434453 its reverse (35443441502), we get a palindrome (55957875955).

The spelling of 20514434453 in words is "twenty billion, five hundred fourteen million, four hundred thirty-four thousand, four hundred fifty-three".