20076494453 has 4 divisors (see below), whose sum is σ = 20416774080. Its totient is φ = 19736214828.

The previous prime is 20076494447. The next prime is 20076494527. The reversal of 20076494453 is 35449467002.

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 a de Polignac number, because none of the positive numbers 2^k-20076494453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20076494413) 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, 170139725 + ... + 170139842.

It is an arithmetic number, because the mean of its divisors is an integer number (5104193520).

Almost surely, 2^20076494453 is an apocalyptic number.

It is an amenable number.

20076494453 is a deficient number, since it is larger than the sum of its proper divisors (340279627).

20076494453 is an equidigital number, since it uses as much as digits as its factorization.

20076494453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340279626.

The product of its (nonzero) digits is 725760, while the sum is 44.

It can be divided in two parts, 2007649 and 4453, that added together give a palindrome (2012102).

The spelling of 20076494453 in words is "twenty billion, seventy-six million, four hundred ninety-four thousand, four hundred fifty-three".